Re: [meteorite-list] The Perils of Type Collecting - A Guide
G'Day Mike You said " So, is there a C3?" Well, if I have a couple of fine scotches, I see 3 :o} All jokes aside, well done! Keep up the good work. Cheers John -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Galactic Stone & Ironworks Sent: Thursday, March 04, 2010 3:13 PM To: zelimir.gabel...@uha.fr Cc: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide Hi Zelimir and List! Now that I look closely (on David Weir's site), I see that the CM3 class is tenative and is probably not official nomenclature yet. The following specimens are listed as tenative CM3 : Acfer 094, WIS 91600, B-7904,and Paris. About Tagish Lake and the C2 group (which I overlooked the C2, but initially had Tagish in the wrong class as C-ung, which I now notice is C2-ung). So, is there a C3? Best regards, MikeG Revised List - --- Carbonaceous Chondrites : CI (Ivuna) CM1 (Mighei) CM2 (subdivided into CM2.0 to CM2.6) CM3 CO3 (Ornans) (subdivided into CO3.03 to CO3.7) CV (Vigarano) (also CV2 and CV3) CK (Karoonda) (CK4, CK5, CK6) CR (Renazzo) (CR1, CR2, CR3) CB (Bencubbin) CH CR ungrouped C ungrouped C2 ungrouped (Tagish Lake) C4 ungrouped Ordinary Chondrites : Rumuruti R3 (subdivided into R3.5-6 to R3.9) R4 R5 R6 LL (subdivided into LL3.0 to LL3.9) LL4 LL5 LL5/6 LL6 LL6/7 LL7 LL impact melt LL transitional (L/LL3 to L/LL6) L (subdivided into L3.0 to L3.9) L4 L5 L6 L6/7 L7 L impact melt H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4) H (subdivided into H3.0 to H3.9) H4 H5 H6 H7 H impact melt ungrouped ordinary chondrites Enstatite Chondrites : EL (EL3 to EL7) EL impact melt EH/L EH (EH3 to EH7) EH impact melt ungrouped enstatite chondrites K (Kakangari) Meta-chondrites (M-CV, M-CR, M-H, M-LL) Primitive Chondrites : Acapulcoite Lodranite Winonaites ungrouped primitive chondrites Achondrites : Howardite (subdivided into fragmental breccia and regolith breccia) Eucrite (monomict and polymict with each having subclasses) Diogenite (monomict and polymict) Olivine Diogenite Dunite Ureilite (monomict and polymict) Martian achondrites : Shergottite Pyroxene-phyric basaltic shergottite Olivine-phyric basaltic shergottite Olivine-orthopyroxene-phyric basaltic shergottite Pyroxene-peridotitic (Wehrlitic) shergottite Lherzolitic shergottite Diabasic shergottite Nakhlite Chassignite Orthopyroxenite (ALH 84001) Lunar Achondrites : Feldspathic breccias Regolith breccia Fragmental breccia Impact melt breccia Granulitic breccia Mafic-rich Thorium-rich KREEP-rich Mingled Breccia Mare Basalt Other Achondrites : Angrites (Plutonic and Basaltic) Brachinite Aubrite ungrouped achondrites (Ibitira, Pasamonte, etc) Stony-Irons : Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B) ungrouped mesosiderites Pallasites (Main Group, Eagle Station group, Pyroxene group) Pallasite-am (anomalous, PMG-am, PMG-as) ungrouped pallasites Iron meteorites : Note, iron meteorites are a can of worms. I will only focus on the main chemical groups, and not the various grouplets and sub-types of each main chemical group. Also note that many of these types include silicated varities. Listing all of the known sub-types of irons would require a LONG list resembling a flow-chart. IAB IC IIAB IIC IID IIE IIF IIG IIIAB IIIE IIIF IVA IVB ungrouped irons - On 3/4/10, zelimir.gabel...@uha.fr wrote: > > Hi Mike, > > Can you tell me the name of the CM3 ? > > Btw: a very complete list of types (& subtypes) can also be found in > both the Met. Bull. database or at the end of the "Meteorites from A > to Z" booklet (ed 2008) by Jensen bros. > > Note: Murchison is CM2.5 (Rubin & al, Geochim, Cosmochim. Acta, 2008) > > Note 2: don't forget to add CK3 and C2 (Tagish) and a few other (see > Carl's remarks) > > Note 3: I am not sure "metachondrite" is official, though I very much > appreciate that new nomenclature suggested by D. Weir in his > outstanding comprehensive site. > > Best wishes, > > Zelimir > > > > Galactic Stone & Ironworks a écrit : > >> Thanks to Carl, Katsu, Greg, Martin, and everyone else who provided >> corrections and input on this list. I have made corrections and the >> revised list is presented below : >> >> Carbonaceous Chondrites : >> >> CI (Ivuna) >> CM1 (Mighei) >> CM2 (subdivided into CM2.0 to CM2.6) >> CM3 >> CO3 (Ornans) (subdivided into CO3.03 to CO3.7) >> CV (Vigarano) (also CV2 and CV3) >> CK (Karoonda) (CK4, CK5, CK6) >> CR (Renazzo) (CR1, CR2, CR3) >> CB (Bencubbin) >> CH >> CR ungrouped >> C4 ungrouped >> C ungrouped >> >> >
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Hi Mike, >So, is there a C3? The Bulletin Database has 12 (not pairing-adjusted) "C3-ungrouped" entries. Most prominent should be Ningqiang, which was first a CV3, than a CK3 (some intermediates between CVs and CKs, you have with Tanezrouft 057 and NWA 2900) and which is now a C3-ungr. Well and else... we have that stone, http://www.chladnis-heirs.com/nwa5377-6.671g.jpg which was preliminarily classified as a C3 (without "ungr"). But it's provisional and has still to be accepted by the NomCom. http://kuerzer.de/5377 Best! Martin & Stefan Chladni's Heirs Munich - Berlin Fine Meteorites for Science & Collectors http://www.chladnis-heirs.com -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Galactic Stone & Ironworks Gesendet: Freitag, 5. März 2010 00:13 An: zelimir.gabel...@uha.fr Cc: meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] The Perils of Type Collecting - A Guide Hi Zelimir and List! Now that I look closely (on David Weir's site), I see that the CM3 class is tenative and is probably not official nomenclature yet. The following specimens are listed as tenative CM3 : Acfer 094, WIS 91600, B-7904,and Paris. About Tagish Lake and the C2 group (which I overlooked the C2, but initially had Tagish in the wrong class as C-ung, which I now notice is C2-ung). So, is there a C3? Best regards, MikeG Revised List - --- Carbonaceous Chondrites : CI (Ivuna) CM1 (Mighei) CM2 (subdivided into CM2.0 to CM2.6) CM3 CO3 (Ornans) (subdivided into CO3.03 to CO3.7) CV (Vigarano) (also CV2 and CV3) CK (Karoonda) (CK4, CK5, CK6) CR (Renazzo) (CR1, CR2, CR3) CB (Bencubbin) CH CR ungrouped C ungrouped C2 ungrouped (Tagish Lake) C4 ungrouped Ordinary Chondrites : Rumuruti R3 (subdivided into R3.5-6 to R3.9) R4 R5 R6 LL (subdivided into LL3.0 to LL3.9) LL4 LL5 LL5/6 LL6 LL6/7 LL7 LL impact melt LL transitional (L/LL3 to L/LL6) L (subdivided into L3.0 to L3.9) L4 L5 L6 L6/7 L7 L impact melt H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4) H (subdivided into H3.0 to H3.9) H4 H5 H6 H7 H impact melt ungrouped ordinary chondrites Enstatite Chondrites : EL (EL3 to EL7) EL impact melt EH/L EH (EH3 to EH7) EH impact melt ungrouped enstatite chondrites K (Kakangari) Meta-chondrites (M-CV, M-CR, M-H, M-LL) Primitive Chondrites : Acapulcoite Lodranite Winonaites ungrouped primitive chondrites Achondrites : Howardite (subdivided into fragmental breccia and regolith breccia) Eucrite (monomict and polymict with each having subclasses) Diogenite (monomict and polymict) Olivine Diogenite Dunite Ureilite (monomict and polymict) Martian achondrites : Shergottite Pyroxene-phyric basaltic shergottite Olivine-phyric basaltic shergottite Olivine-orthopyroxene-phyric basaltic shergottite Pyroxene-peridotitic (Wehrlitic) shergottite Lherzolitic shergottite Diabasic shergottite Nakhlite Chassignite Orthopyroxenite (ALH 84001) Lunar Achondrites : Feldspathic breccias Regolith breccia Fragmental breccia Impact melt breccia Granulitic breccia Mafic-rich Thorium-rich KREEP-rich Mingled Breccia Mare Basalt Other Achondrites : Angrites (Plutonic and Basaltic) Brachinite Aubrite ungrouped achondrites (Ibitira, Pasamonte, etc) Stony-Irons : Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B) ungrouped mesosiderites Pallasites (Main Group, Eagle Station group, Pyroxene group) Pallasite-am (anomalous, PMG-am, PMG-as) ungrouped pallasites Iron meteorites : Note, iron meteorites are a can of worms. I will only focus on the main chemical groups, and not the various grouplets and sub-types of each main chemical group. Also note that many of these types include silicated varities. Listing all of the known sub-types of irons would require a LONG list resembling a flow-chart. IAB IC IIAB IIC IID IIE IIF IIG IIIAB IIIE IIIF IVA IVB ungrouped irons - On 3/4/10, zelimir.gabel...@uha.fr wrote: > > Hi Mike, > > Can you tell me the name of the CM3 ? > > Btw: a very complete list of types (& subtypes) can also be found in > both the Met. Bull. database or at the end of the "Meteorites from A > to Z" booklet (ed 2008) by Jensen bros. > > Note: Murchison is CM2.5 (Rubin & al, Geochim, Cosmochim. Acta, 2008) > > Note 2: don't forget to add CK3 and C2 (Tagish) and a few other (see > Carl's remarks) > > Note 3: I am not sure "metachondrite" is official, though I very much > appreciate that new nomenclature suggested by D. Weir in his > outstanding comprehensive site. > > Best wishes, > > Zelimir > > > > Galactic Stone & Ironworks a écrit : > >> Thanks to Carl, Katsu, Greg, Martin, and everyone else who provided >> corrections and input on this list.
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Hi Mike, Can you tell me the name of the CM3 ? Btw: a very complete list of types (& subtypes) can also be found in both the Met. Bull. database or at the end of the "Meteorites from A to Z" booklet (ed 2008) by Jensen bros. Note: Murchison is CM2.5 (Rubin & al, Geochim, Cosmochim. Acta, 2008) Note 2: don't forget to add CK3 and C2 (Tagish) and a few other (see Carl's remarks) Note 3: I am not sure "metachondrite" is official, though I very much appreciate that new nomenclature suggested by D. Weir in his outstanding comprehensive site. Best wishes, Zelimir Galactic Stone & Ironworks a écrit : Thanks to Carl, Katsu, Greg, Martin, and everyone else who provided corrections and input on this list. I have made corrections and the revised list is presented below : Carbonaceous Chondrites : CI (Ivuna) CM1 (Mighei) CM2 (subdivided into CM2.0 to CM2.6) CM3 CO3 (Ornans) (subdivided into CO3.03 to CO3.7) CV (Vigarano) (also CV2 and CV3) CK (Karoonda) (CK4, CK5, CK6) CR (Renazzo) (CR1, CR2, CR3) CB (Bencubbin) CH CR ungrouped C4 ungrouped C ungrouped Ordinary Chondrites : Rumuruti R3 (subdivided into R3.5-6 to R3.9) R4 R5 R6 LL (subdivided into LL3.0 to LL3.9) LL4 LL5 LL5/6 LL6 LL6/7 LL7 LL impact melt LL transitional (L/LL3 to L/LL6) L (subdivided into L3.0 to L3.9) L4 L5 L6 L6/7 L7 L impact melt H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4) H (subdivided into H3.0 to H3.9) H4 H5 H6 H7 H impact melt ungrouped ordinary chondrites Enstatite Chondrites : EL (EL3 to EL7) EL impact melt EH/L EH (EH3 to EH7) EH impact melt ungrouped enstatite chondrites K (Kakangari) Meta-chondrites (M-CV, M-CR, M-H, M-LL) Primitive Chondrites : Acapulcoite Lodranite Winonaites ungrouped primitive chondrites Achondrites : Howardite (subdivided into fragmental breccia and regolith breccia) Eucrite (monomict and polymict with each having subclasses) Diogenite (monomict and polymict) Olivine Diogenite Dunite Ureilite (monomict and polymict) Martian achondrites : Shergottite Pyroxene-phyric basaltic shergottite Olivine-phyric basaltic shergottite Olivine-orthopyroxene-phyric basaltic shergottite Pyroxene-peridotitic (Wehrlitic) shergottite Lherzolitic shergottite Diabasic shergottite Nakhlite Chassignite Orthopyroxenite (ALH 84001) Lunar Achondrites : Feldspathic breccias Regolith breccia Fragmental breccia Impact melt breccia Granulitic breccia Mafic-rich Thorium-rich KREEP-rich Mingled Breccia Mare Basalt Other Achondrites : Angrites (Plutonic and Basaltic) Brachinite Aubrite ungrouped achondrites (Ibitira, Pasamonte, etc) Stony-Irons : Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B) ungrouped mesosiderites Pallasites (Main Group, Eagle Station group, Pyroxene group) Pallasite-am (anomalous, PMG-am, PMG-as) ungrouped pallasites Iron meteorites : Note, iron meteorites are a can of worms. I will only focus on the main chemical groups, and not the various grouplets and sub-types of each main chemical group. Also note that many of these types include silicated varities. Listing all of the known sub-types of irons would require a LONG list resembling a flow-chart. IAB IC IIAB IIC IID IIE IIF IIG IIIAB IIIE IIIF IVA IVB ungrouped irons -- On 3/4/10, Katsu OHTSUKA wrote: CM2 (Mighei-type) Katsu - Original Message - From: "Greg Stanley" To: ; ; ; Sent: Thursday, March 04, 2010 9:29 AM Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide Murchison is a CM2 Greg S. Date: Wed, 3 Mar 2010 19:12:20 -0500 From: cdtuc...@cox.net To: meteorite-list@meteoritecentral.com; damoc...@yahoo.com; meteoritem...@gmail.com Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide Good list, missing is the division between CBa Buencubbin CBb HAH 237 CK3 and Tagish lake is not ungrouped but I think is a C2. -- Carl or Debbie Esparza Meteoritemax Richard Kowalski wrote: Thanks a lot Mike. I thought I had pretty much completed my type set a few months ago, but now I see that I'm missed a few gradations that maybe I should pay attention to. I think, for budgetary and sanity sake, I'll have to be selective in how fine my divisions are than to try to get every sub-type you mention! -- Richard Kowalski Full Moon Photography IMCA #1081 --- On Wed, 3/3/10, Galactic Stone & Ironworks wrote: From: Galactic Stone & Ironworks Subject: [meteorite-list] The Perils of Type Collecting - A Guide To: "Meteorite List" Date: Wednesday, March 3, 2010, 4:18 PM Greetings Listees and fellow collectors, To the veteran collector, there will be little of interest in this post. This post is directed at the silent newbie or beginner lurkers who are sorting through this List and trying to find their way around the world of collecting meteorites. Many new collectors often want one of each type of meteorite. Many
Re: [meteorite-list] The Perils of Type Collecting - A Guide
>> H (subdivided into H3.0 to H3.9) >> H4 >> H5 >> H6 >> H7 >> H impact melt >> >> ungrouped ordinary chondrites >> >> >> Enstatite Chondrites : >> >> EL (EL3 to EL7) >> EL impact melt >> EH/L >> EH (EH3 to EH7) >> EH impact melt >> ungrouped enstatite chondrites >> >> K (Kakangari) >> >> Meta-chondrites (M-CV, M-CR, M-H, M-LL) >> >> >> Primitive Chondrites : >> >> Acapulcoite >> Lodranite >> Winonaites >> ungrouped primitive chondrites >> >> >> Achondrites : >> >> Howardite (subdivided into fragmental breccia and regolith breccia) >> Eucrite (monomict and polymict with each having subclasses) >> Diogenite (monomict and polymict) >> Olivine Diogenite >> Dunite >> Ureilite (monomict and polymict) >> >> >> Martian achondrites : >> >> Shergottite >> Pyroxene-phyric basaltic shergottite >> Olivine-phyric basaltic shergottite >> Olivine-orthopyroxene-phyric basaltic shergottite >> Pyroxene-peridotitic (Wehrlitic) shergottite >> Lherzolitic shergottite >> Diabasic shergottite >> >> Nakhlite >> Chassignite >> Orthopyroxenite (ALH 84001) >> >> >> Lunar Achondrites : >> >> Feldspathic breccias >> Regolith breccia >> Fragmental breccia >> Impact melt breccia >> Granulitic breccia >> Mafic-rich >> Thorium-rich >> KREEP-rich >> >> Mingled Breccia >> Mare Basalt >> >> >> Other Achondrites : >> >> Angrites (Plutonic and Basaltic) >> Brachinite >> Aubrite >> ungrouped achondrites (Ibitira, Pasamonte, etc) >> >> >> Stony-Irons : >> >> Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B) >> ungrouped mesosiderites >> >> Pallasites (Main Group, Eagle Station group, Pyroxene group) >> Pallasite-am (anomalous, PMG-am, PMG-as) >> ungrouped pallasites >> >> >> Iron meteorites : >> >> Note, iron meteorites are a can of worms. I will only focus on the >> main chemical groups, and not the various grouplets and sub-types of >> each main chemical group. Also note that many of these types include >> silicated varities. Listing all of the known sub-types of irons would >> require a LONG list resembling a flow-chart. >> >> IAB >> IC >> IIAB >> IIC >> IID >> IIE >> IIF >> IIG >> IIIAB >> IIIE >> IIIF >> IVA >> IVB >> ungrouped irons >> >> -- >> >> On 3/4/10, Katsu OHTSUKA wrote: >>> CM2 (Mighei-type) >>> >>> Katsu >>> >>> - Original Message - >>> From: "Greg Stanley" >>> To: ; ; >>> ; >>> Sent: Thursday, March 04, 2010 9:29 AM >>> Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide >>> >>> >>>> >>>> Murchison is a CM2 >>>> >>>> Greg S. >>>> >>>> >>>>> Date: Wed, 3 Mar 2010 19:12:20 -0500 >>>>> From: cdtuc...@cox.net >>>>> To: meteorite-list@meteoritecentral.com; damoc...@yahoo.com; >>>>> meteoritem...@gmail.com >>>>> Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide >>>>> >>>>> Good list, >>>>> missing is the division between >>>>> CBa Buencubbin >>>>> CBb HAH 237 >>>>> CK3 >>>>> and Tagish lake is not ungrouped but I think is a C2. >>>>> -- >>>>> Carl or Debbie Esparza >>>>> Meteoritemax >>>>> >>>>> >>>>> Richard Kowalski wrote: >>>>>> Thanks a lot Mike. >>>>>> >>>>>> I thought I had pretty much completed my type set a few months ago, >>>>>> but >>>>>> now I see that I'm missed a few gradations that maybe I should pay >>>>>> attention to. >>>>>> >>>>>> I think, for budgetary and sanity sake, I'll have to be selective in >>>>>> how >>>>>> >>>>>> fine my divisions are than to try to get every sub-type you mention! >>>>>> >>>>>> -- >>>>>> Richard Kowalski >>>>>> Full Moon Photography >>>>>> IMCA #1081 >>&g
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Thanks to Carl, Katsu, Greg, Martin, and everyone else who provided corrections and input on this list. I have made corrections and the revised list is presented below : Carbonaceous Chondrites : CI (Ivuna) CM1 (Mighei) CM2 (subdivided into CM2.0 to CM2.6) CM3 CO3 (Ornans) (subdivided into CO3.03 to CO3.7) CV (Vigarano) (also CV2 and CV3) CK (Karoonda) (CK4, CK5, CK6) CR (Renazzo) (CR1, CR2, CR3) CB (Bencubbin) CH CR ungrouped C4 ungrouped C ungrouped Ordinary Chondrites : Rumuruti R3 (subdivided into R3.5-6 to R3.9) R4 R5 R6 LL (subdivided into LL3.0 to LL3.9) LL4 LL5 LL5/6 LL6 LL6/7 LL7 LL impact melt LL transitional (L/LL3 to L/LL6) L (subdivided into L3.0 to L3.9) L4 L5 L6 L6/7 L7 L impact melt H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4) H (subdivided into H3.0 to H3.9) H4 H5 H6 H7 H impact melt ungrouped ordinary chondrites Enstatite Chondrites : EL (EL3 to EL7) EL impact melt EH/L EH (EH3 to EH7) EH impact melt ungrouped enstatite chondrites K (Kakangari) Meta-chondrites (M-CV, M-CR, M-H, M-LL) Primitive Chondrites : Acapulcoite Lodranite Winonaites ungrouped primitive chondrites Achondrites : Howardite (subdivided into fragmental breccia and regolith breccia) Eucrite (monomict and polymict with each having subclasses) Diogenite (monomict and polymict) Olivine Diogenite Dunite Ureilite (monomict and polymict) Martian achondrites : Shergottite Pyroxene-phyric basaltic shergottite Olivine-phyric basaltic shergottite Olivine-orthopyroxene-phyric basaltic shergottite Pyroxene-peridotitic (Wehrlitic) shergottite Lherzolitic shergottite Diabasic shergottite Nakhlite Chassignite Orthopyroxenite (ALH 84001) Lunar Achondrites : Feldspathic breccias Regolith breccia Fragmental breccia Impact melt breccia Granulitic breccia Mafic-rich Thorium-rich KREEP-rich Mingled Breccia Mare Basalt Other Achondrites : Angrites (Plutonic and Basaltic) Brachinite Aubrite ungrouped achondrites (Ibitira, Pasamonte, etc) Stony-Irons : Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B) ungrouped mesosiderites Pallasites (Main Group, Eagle Station group, Pyroxene group) Pallasite-am (anomalous, PMG-am, PMG-as) ungrouped pallasites Iron meteorites : Note, iron meteorites are a can of worms. I will only focus on the main chemical groups, and not the various grouplets and sub-types of each main chemical group. Also note that many of these types include silicated varities. Listing all of the known sub-types of irons would require a LONG list resembling a flow-chart. IAB IC IIAB IIC IID IIE IIF IIG IIIAB IIIE IIIF IVA IVB ungrouped irons -- On 3/4/10, Katsu OHTSUKA wrote: > CM2 (Mighei-type) > > Katsu > > - Original Message - > From: "Greg Stanley" > To: ; ; > ; > Sent: Thursday, March 04, 2010 9:29 AM > Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide > > >> >> Murchison is a CM2 >> >> Greg S. >> >> >>> Date: Wed, 3 Mar 2010 19:12:20 -0500 >>> From: cdtuc...@cox.net >>> To: meteorite-list@meteoritecentral.com; damoc...@yahoo.com; >>> meteoritem...@gmail.com >>> Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide >>> >>> Good list, >>> missing is the division between >>> CBa Buencubbin >>> CBb HAH 237 >>> CK3 >>> and Tagish lake is not ungrouped but I think is a C2. >>> -- >>> Carl or Debbie Esparza >>> Meteoritemax >>> >>> >>> Richard Kowalski wrote: >>>> Thanks a lot Mike. >>>> >>>> I thought I had pretty much completed my type set a few months ago, but >>>> now I see that I'm missed a few gradations that maybe I should pay >>>> attention to. >>>> >>>> I think, for budgetary and sanity sake, I'll have to be selective in how >>>> >>>> fine my divisions are than to try to get every sub-type you mention! >>>> >>>> -- >>>> Richard Kowalski >>>> Full Moon Photography >>>> IMCA #1081 >>>> >>>> >>>> --- On Wed, 3/3/10, Galactic Stone & Ironworks wrote: >>>> >>>>> From: Galactic Stone & Ironworks >>>>> Subject: [meteorite-list] The Perils of Type Collecting - A Guide >>>>> To: "Meteorite List" >>>>> Date: Wednesday, March 3, 2010, 4:18 PM >>>>> Greetings Listees and fellow >>>>> collectors, >>>>> >>>>> To the veteran collector, there will be little of interest >>>>> in this >>>>> post. This post is directed at the silent newbie or >>>>>
Re: [meteorite-list] The Perils of Type Collecting - A Guide
CM2 (Mighei-type) Katsu - Original Message - From: "Greg Stanley" To: ; ; ; Sent: Thursday, March 04, 2010 9:29 AM Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide Murchison is a CM2 Greg S. Date: Wed, 3 Mar 2010 19:12:20 -0500 From: cdtuc...@cox.net To: meteorite-list@meteoritecentral.com; damoc...@yahoo.com; meteoritem...@gmail.com Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide Good list, missing is the division between CBa Buencubbin CBb HAH 237 CK3 and Tagish lake is not ungrouped but I think is a C2. -- Carl or Debbie Esparza Meteoritemax Richard Kowalski wrote: Thanks a lot Mike. I thought I had pretty much completed my type set a few months ago, but now I see that I'm missed a few gradations that maybe I should pay attention to. I think, for budgetary and sanity sake, I'll have to be selective in how fine my divisions are than to try to get every sub-type you mention! -- Richard Kowalski Full Moon Photography IMCA #1081 --- On Wed, 3/3/10, Galactic Stone & Ironworks wrote: From: Galactic Stone & Ironworks Subject: [meteorite-list] The Perils of Type Collecting - A Guide To: "Meteorite List" Date: Wednesday, March 3, 2010, 4:18 PM Greetings Listees and fellow collectors, To the veteran collector, there will be little of interest in this post. This post is directed at the silent newbie or beginner lurkers who are sorting through this List and trying to find their way around the world of collecting meteorites. Many new collectors often want one of each type of meteorite. Many veteran collectors abandon this pursuit because the task is quite daunting. So when you hear talk about "type collecting", or building a "type collection", what exactly does that mean? I hope the following brief article will answer those questions, or at least point the reader in the right general direction. Note, I gleaned much of this type information from David Weir's authoritative website "Meteorite Studies" and from the Meteoritical Bulletin. I do not claim that this list is 100% complete or without error, so if the reader spots an error or omission, please reply and correct it. - The Perils of Type Collecting I started out collecting meteorites with a small sample of NWA 4293 - an ordinary high iron chondrite of the H6 type. It was about the size of a dog-food kibble and it looked like one. But I was instantly hooked, and I wanted to have one each of the different types of meteorite. This is known as "type collecting" or building a "type collection". The danger of type collecting (besides the damage to one's checking account) is that the various petrologic types are subdivided into various grades according to metamorphism. For example, take the H chondrite group that my NWA 4293 sample belonged to. There are H3 chondrites, H4 chondrites, H5 chondrites, and H6 chondrites. Did I really need one each of these subtypes? Well, it depends on how deep a collector wants to go into the rabbit hole. There are distinct differences between the various H types. The number attached to each is more than just a simple weathering grade or shock grade. It represents a progession in the H-chondrite family from least altered to most altered. H3 chondrites are loaded with chondrules, H4 have some chondrules, H5 has few chondrules, and H6 has virtually no visible chondrules. A new grade of H7 has been added as well. So, a collector could simply have a single Hx chondrite and say that the H-chondrites are represented. Or, the collector could have one each of the different subtypes from 3 to 7. Another peril is the changing of nomenclature. For example, the K-subgroup of carbonaceous chondrites was only recognized and designated in 1990. Up until then, Karoonda was considered a CV4 meteorite of the Vigarano family. Now Karoonda is recognized as distinctly different type of carbonaceous chondrite, so it was made into it's own group. Now we have CK4, CK5, and CK6 meteorites - all represent a progression in metamorphism and have visible (and chemical) differences from other grades. There are standout members of each subgroup, so where does one draw the line? Should the collector acquire a sample of Karoonda and be done with it? Or should the collector go out and track down CK4, CK5 and CK6 meteorites? Again, it depends on how extensive and exhaustive a collector wants to be with their type collection. Budget will also play a role as well, because an exhaustive type collection is a daunting project. Lastly, one must consider the ungrouped meteorites. These are oddball meteorites that do not neatly fit into the pre-existing meteorite types. There are ungrouped chondrites, ungrouped achondrites, and ungrouped irons. No type collection can overlook these meteorites because some of them are t
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Hi Mike, fine article. Maybe a remark :-) >The danger of type collecting (besides the damage to one's checking >account) There we can see, what the desert rush has opened for unbelievable opportunities to the collector! Just step 10 years back in time! There such a task, to accomplish a complete type collection, would have been almost impossible. There were only the Libyan finds (well and some types didn't exist yet) and the problem was, that one hadn't much choice. Often with the rarest types, you could choose only from one or two locales. And it was a costly thing. For an ACAP, which cost today 30$ a gram, you had to pay 1000-1500$/g. Something so extremely crazy like a Howardite () cost 500$/g then, where you now often can win your little slice at 10$/g or so on ebay. >From lunaites, we better don't talk... Ureilites, Rumurutites... and so on. If something like that was available on a show, the collectors pressed their noses on the glass of the show cases, to catch a glimpse of such crazy material. Just 10 years ago. Now nearly everyone is able to set up a type collection, without selling the house, wife and children. Collectors, scientists, curators. That's also why it is so important, that the desert countries have to stay open for meteorite hunts. I noticed, that many collectors recognized, that they're living in the best period of meteorite history, and that they built up - aside their main focus (let it be the irons, or historic falls, or special types, or oriented ones or whatever) - a second, independent collection - a type collection! And let it be thumb-nail-sized slices, which still display often enough very typical characteristics for the classes. The elder collectors, because they suffered in these times, when such a task was unachievable, the younger ones, because they are curious and because they want to own all the variety of meteorites, they can find in the books and on the webpages - and because it's possible in NWA&Oman times, with a relatively modest budget. (Huh Mike, when I started, 30 years ago, you had the choice only between approx 300 meteorite locales, but also only with a lot of patience. Meteorites not types! Often it happened, that you found nothing new to buy and you took, for taking anything at all, an old weathered Texas H5 or L6 and you were happy about). How much has changed since! Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Galactic Stone & Ironworks Gesendet: Donnerstag, 4. März 2010 00:19 An: Meteorite List Betreff: [meteorite-list] The Perils of Type Collecting - A Guide Greetings Listees and fellow collectors, To the veteran collector, there will be little of interest in this post. This post is directed at the silent newbie or beginner lurkers who are sorting through this List and trying to find their way around the world of collecting meteorites. Many new collectors often want one of each type of meteorite. Many veteran collectors abandon this pursuit because the task is quite daunting. So when you hear talk about "type collecting", or building a "type collection", what exactly does that mean? I hope the following brief article will answer those questions, or at least point the reader in the right general direction. Note, I gleaned much of this type information from David Weir's authoritative website "Meteorite Studies" and from the Meteoritical Bulletin. I do not claim that this list is 100% complete or without error, so if the reader spots an error or omission, please reply and correct it. - The Perils of Type Collecting I started out collecting meteorites with a small sample of NWA 4293 - an ordinary high iron chondrite of the H6 type. It was about the size of a dog-food kibble and it looked like one. But I was instantly hooked, and I wanted to have one each of the different types of meteorite. This is known as "type collecting" or building a "type collection". The danger of type collecting (besides the damage to one's checking account) is that the various petrologic types are subdivided into various grades according to metamorphism. For example, take the H chondrite group that my NWA 4293 sample belonged to. There are H3 chondrites, H4 chondrites, H5 chondrites, and H6 chondrites. Did I really need one each of these subtypes? Well, it depends on how deep a collector wants to go into the rabbit hole. There are distinct differences between the various H types. The number attached to each is more than just a simple weathering grade or shock grade. It represents a progession in the H-chondrite family from least altered to most altered. H3 chondrites are loaded with chondrules, H4 have some chondrules, H5 has few chondrules, and H6 has virtually no visible chondrules. A new grade of H7 has been added as well. So, a collector could simply have a single Hx chondrite and say that the H-chondrites are
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Murchison is a CM2 Greg S. > Date: Wed, 3 Mar 2010 19:12:20 -0500 > From: cdtuc...@cox.net > To: meteorite-list@meteoritecentral.com; damoc...@yahoo.com; > meteoritem...@gmail.com > Subject: Re: [meteorite-list] The Perils of Type Collecting - A Guide > > Good list, > missing is the division between > CBa Buencubbin > CBb HAH 237 > CK3 > and Tagish lake is not ungrouped but I think is a C2. > -- > Carl or Debbie Esparza > Meteoritemax > > > Richard Kowalski wrote: >> Thanks a lot Mike. >> >> I thought I had pretty much completed my type set a few months ago, but now >> I see that I'm missed a few gradations that maybe I should pay attention to. >> >> I think, for budgetary and sanity sake, I'll have to be selective in how >> fine my divisions are than to try to get every sub-type you mention! >> >> -- >> Richard Kowalski >> Full Moon Photography >> IMCA #1081 >> >> >> --- On Wed, 3/3/10, Galactic Stone & Ironworks wrote: >> >>> From: Galactic Stone & Ironworks >>> Subject: [meteorite-list] The Perils of Type Collecting - A Guide >>> To: "Meteorite List" >>> Date: Wednesday, March 3, 2010, 4:18 PM >>> Greetings Listees and fellow >>> collectors, >>> >>> To the veteran collector, there will be little of interest >>> in this >>> post. This post is directed at the silent newbie or >>> beginner lurkers >>> who are sorting through this List and trying to find their >>> way around >>> the world of collecting meteorites. >>> >>> Many new collectors often want one of each type of >>> meteorite. Many >>> veteran collectors abandon this pursuit because the task is >>> quite >>> daunting. So when you hear talk about >>> "type collecting", or building >>> a "type collection", what exactly does that mean? I >>> hope the >>> following brief article will answer those questions, or at >>> least point >>> the reader in the right general direction. Note, I >>> gleaned much of >>> this type information from David Weir's authoritative >>> website >>> "Meteorite Studies" and from the Meteoritical >>> Bulletin. I do not >>> claim that this list is 100% complete or without error, so >>> if the >>> reader spots an error or omission, please reply and correct >>> it. >>> >>> - >>> >>> The Perils of Type Collecting >>> >>> I started out collecting meteorites with a small sample of >>> NWA 4293 - >>> an ordinary high iron chondrite of the H6 type. It was >>> about the size >>> of a dog-food kibble and it looked like one. But I was >>> instantly >>> hooked, and I wanted to have one each of the different >>> types of >>> meteorite. This is known as "type collecting" or building a >>> "type >>> collection". >>> >>> The danger of type collecting (besides the damage to one's >>> checking >>> account) is that the various petrologic types are >>> subdivided into >>> various grades according to metamorphism. >>> >>> For example, take the H chondrite group that my NWA 4293 >>> sample belonged to. >>> >>> There are H3 chondrites, H4 chondrites, H5 chondrites, and >>> H6 >>> chondrites. Did I really need one each of these subtypes? >>> Well, it >>> depends on how deep a collector wants to go into the rabbit >>> hole. >>> There are distinct differences between the various H types. >>> The number >>> attached to each is more than just a simple weathering >>> grade or shock >>> grade. It represents a progession in the H-chondrite family >>> from least >>> altered to most altered. H3 chondrites are loaded with >>> chondrules, H4 >>> have some chondrules, H5 has few chondrules, and H6 has >>> virtually no >>> visible chondrules. A new grade of H7 has been added as >>> well. So, a >>> collector could simply have a single Hx chondrite and say >>> that the >>> H-chondrites are represented. Or, the collector could have >>> one each of >>> the different subtypes from 3 to 7. >>> >>> Another peril is the changing of nomenclature. For example, >>> the >>> K-
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Good list, missing is the division between CBa Buencubbin CBb HAH 237 CK3 and Tagish lake is not ungrouped but I think is a C2. -- Carl or Debbie Esparza Meteoritemax Richard Kowalski wrote: > Thanks a lot Mike. > > I thought I had pretty much completed my type set a few months ago, but now I > see that I'm missed a few gradations that maybe I should pay attention to. > > I think, for budgetary and sanity sake, I'll have to be selective in how fine > my divisions are than to try to get every sub-type you mention! > > -- > Richard Kowalski > Full Moon Photography > IMCA #1081 > > > --- On Wed, 3/3/10, Galactic Stone & Ironworks > wrote: > > > From: Galactic Stone & Ironworks > > Subject: [meteorite-list] The Perils of Type Collecting - A Guide > > To: "Meteorite List" > > Date: Wednesday, March 3, 2010, 4:18 PM > > Greetings Listees and fellow > > collectors, > > > > To the veteran collector, there will be little of interest > > in this > > post. This post is directed at the silent newbie or > > beginner lurkers > > who are sorting through this List and trying to find their > > way around > > the world of collecting meteorites. > > > > Many new collectors often want one of each type of > > meteorite. Many > > veteran collectors abandon this pursuit because the task is > > quite > > daunting. So when you hear talk about > > "type collecting", or building > > a "type collection", what exactly does that mean? I > > hope the > > following brief article will answer those questions, or at > > least point > > the reader in the right general direction. Note, I > > gleaned much of > > this type information from David Weir's authoritative > > website > > "Meteorite Studies" and from the Meteoritical > > Bulletin. I do not > > claim that this list is 100% complete or without error, so > > if the > > reader spots an error or omission, please reply and correct > > it. > > > > - > > > > The Perils of Type Collecting > > > > I started out collecting meteorites with a small sample of > > NWA 4293 - > > an ordinary high iron chondrite of the H6 type. It was > > about the size > > of a dog-food kibble and it looked like one. But I was > > instantly > > hooked, and I wanted to have one each of the different > > types of > > meteorite. This is known as "type collecting" or building a > > "type > > collection". > > > > The danger of type collecting (besides the damage to one's > > checking > > account) is that the various petrologic types are > > subdivided into > > various grades according to metamorphism. > > > > For example, take the H chondrite group that my NWA 4293 > > sample belonged to. > > > > There are H3 chondrites, H4 chondrites, H5 chondrites, and > > H6 > > chondrites. Did I really need one each of these subtypes? > > Well, it > > depends on how deep a collector wants to go into the rabbit > > hole. > > There are distinct differences between the various H types. > > The number > > attached to each is more than just a simple weathering > > grade or shock > > grade. It represents a progession in the H-chondrite family > > from least > > altered to most altered. H3 chondrites are loaded with > > chondrules, H4 > > have some chondrules, H5 has few chondrules, and H6 has > > virtually no > > visible chondrules. A new grade of H7 has been added as > > well. So, a > > collector could simply have a single Hx chondrite and say > > that the > > H-chondrites are represented. Or, the collector could have > > one each of > > the different subtypes from 3 to 7. > > > > Another peril is the changing of nomenclature. For example, > > the > > K-subgroup of carbonaceous chondrites was only recognized > > and > > designated in 1990. Up until then, Karoonda was considered > > a CV4 > > meteorite of the Vigarano family. Now Karoonda is > > recognized as > > distinctly different type of carbonaceous chondrite, so it > > was made > > into it's own group. Now we have CK4, CK5, and CK6 > > meteorites - all > > represent a progression in metamorphism and have visible > > (and > > chemical) differences from other grades. There are standout > > members of > > each subgroup, so where does one draw the line? Should the > > collector > > acquire a sample of Karoonda and be done with it? Or should > > the > > collector go out and track down CK4, CK5 and CK6 > > meteorites? Again, it > > depends on how extensive and exhaustive a collector wants > > to be with > > their type collection. Budget will also play a role as > > well, because > > an exhaustive type collection is a daunting project. > > > > Lastly, one must consider the ungrouped meteorites. These > > are oddball > > meteorites that do not neatly fit into the pre-existing > > meteorite > > types. There are ungrouped chondrites, ungrouped > > achondrites, and > > ungrouped irons. No type collection can overlook these > > meteorites > > because some of them are types unto themselves with unique > > qualities. > > > > For those who want t
Re: [meteorite-list] The Perils of Type Collecting - A Guide
Thanks a lot Mike. I thought I had pretty much completed my type set a few months ago, but now I see that I'm missed a few gradations that maybe I should pay attention to. I think, for budgetary and sanity sake, I'll have to be selective in how fine my divisions are than to try to get every sub-type you mention! -- Richard Kowalski Full Moon Photography IMCA #1081 --- On Wed, 3/3/10, Galactic Stone & Ironworks wrote: > From: Galactic Stone & Ironworks > Subject: [meteorite-list] The Perils of Type Collecting - A Guide > To: "Meteorite List" > Date: Wednesday, March 3, 2010, 4:18 PM > Greetings Listees and fellow > collectors, > > To the veteran collector, there will be little of interest > in this > post. This post is directed at the silent newbie or > beginner lurkers > who are sorting through this List and trying to find their > way around > the world of collecting meteorites. > > Many new collectors often want one of each type of > meteorite. Many > veteran collectors abandon this pursuit because the task is > quite > daunting. So when you hear talk about > "type collecting", or building > a "type collection", what exactly does that mean? I > hope the > following brief article will answer those questions, or at > least point > the reader in the right general direction. Note, I > gleaned much of > this type information from David Weir's authoritative > website > "Meteorite Studies" and from the Meteoritical > Bulletin. I do not > claim that this list is 100% complete or without error, so > if the > reader spots an error or omission, please reply and correct > it. > > - > > The Perils of Type Collecting > > I started out collecting meteorites with a small sample of > NWA 4293 - > an ordinary high iron chondrite of the H6 type. It was > about the size > of a dog-food kibble and it looked like one. But I was > instantly > hooked, and I wanted to have one each of the different > types of > meteorite. This is known as "type collecting" or building a > "type > collection". > > The danger of type collecting (besides the damage to one's > checking > account) is that the various petrologic types are > subdivided into > various grades according to metamorphism. > > For example, take the H chondrite group that my NWA 4293 > sample belonged to. > > There are H3 chondrites, H4 chondrites, H5 chondrites, and > H6 > chondrites. Did I really need one each of these subtypes? > Well, it > depends on how deep a collector wants to go into the rabbit > hole. > There are distinct differences between the various H types. > The number > attached to each is more than just a simple weathering > grade or shock > grade. It represents a progession in the H-chondrite family > from least > altered to most altered. H3 chondrites are loaded with > chondrules, H4 > have some chondrules, H5 has few chondrules, and H6 has > virtually no > visible chondrules. A new grade of H7 has been added as > well. So, a > collector could simply have a single Hx chondrite and say > that the > H-chondrites are represented. Or, the collector could have > one each of > the different subtypes from 3 to 7. > > Another peril is the changing of nomenclature. For example, > the > K-subgroup of carbonaceous chondrites was only recognized > and > designated in 1990. Up until then, Karoonda was considered > a CV4 > meteorite of the Vigarano family. Now Karoonda is > recognized as > distinctly different type of carbonaceous chondrite, so it > was made > into it's own group. Now we have CK4, CK5, and CK6 > meteorites - all > represent a progression in metamorphism and have visible > (and > chemical) differences from other grades. There are standout > members of > each subgroup, so where does one draw the line? Should the > collector > acquire a sample of Karoonda and be done with it? Or should > the > collector go out and track down CK4, CK5 and CK6 > meteorites? Again, it > depends on how extensive and exhaustive a collector wants > to be with > their type collection. Budget will also play a role as > well, because > an exhaustive type collection is a daunting project. > > Lastly, one must consider the ungrouped meteorites. These > are oddball > meteorites that do not neatly fit into the pre-existing > meteorite > types. There are ungrouped chondrites, ungrouped > achondrites, and > ungrouped irons. No type collection can overlook these > meteorites > because some of them are types unto themselves with unique > qualities. > > For those who want to build a definitive and complete type > collection, > here is a list of every known type and subtype of > meteorite. This list > was culled from other sources, including David Weir's > authoritative > "Meteorite Studies" website linked at the end of this > post. > > Carbonaceous Chondrites : > > CI (Ivuna) > CM1 (Murchison) > CM2 (subdivided into CM2.0 to CM2.6) > CM3 > CO3 (Ornans) (subdivided into CO3.03 to CO3.7) > CV (Vigarano) (also CV2 and CV3) > CK (Karoonda) (CK4, CK5, CK
