[meteorite-list] Instant laboratory analysis
To any list members who may wish to have an immediate analysis of possible meteoric material I recommend sending your samples to the Center For Meteorite Studies P.O. Box 872504, Tempe AZ 85287-2504. I found some very weathered fragments last weekend in the Gold Basin area of NW Arizona. On Monday I cut and polished seven samples to send for analysis. These were packaged and dropped in the mail on Tuesday the 9th. The samples were back in my mailbox yesterday morning, repackaged with the analysis results. They are now packed a little differently and on their way to the Maricopa County landfill. The speed and efficiency of the Center for Meteorite Studies and our US Postal Service are phenomenal. I intend to keep sending in samples until I get it rite. I too am getting old, and losing my crust. My iron/nickel has turned mostly to rust. But I want to find a meteorite, before I turn to dust. Thorny __ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] How do you know?
Greetings to all. I have been told that only one in one thousand rocks submitted to the experts at the universities and other meteorite identification labs, turns out to be an actual meteorite. If this is true, how can the hundreds of uncut, unclassified rocks from northwest Africa be passed off as meteorites? I'm not questioning that they all are, and I'm certainly not doubting any of the list members who are selling them. I just would like to know if there is some magical test. Is the Sahara, like the ice of Antarctica, the test itself? Does any rock that sits on the sand automaticly become a meteorite candidate because that is the only way it could have gotten there? I've got on my asbestos BVD's, so light the flamethrowers. Thorny __ Do You Yahoo!? HotJobs - Search Thousands of New Jobs http://www.hotjobs.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites / Mining Claims
Tom, Sonny, and list; Technically, I guess you are right Tom. However, it is not wise to encourage anyone search for meteorites on an active mining claim. I hold two gold claims and I tend to become annoyed if I see someone picking up rocks or searching with a metal detector. I'm pretty mellow and would only ask them search elsewhere, but not all miners will react this way. I've always been taught to respect claims as if they were private property. Art Tom aka James Knudson <[EMAIL PROTECTED]> wrote: A gold claim can not claim a meteorite, if they try to say it is theirs BLMwill pull their claim from them! Also you can not get a meteorite claim. Sohunt away, if anyone says anything, report them to BLM!!!Thanks, Tomperegrineflier <>To: <[EMAIL PROTECTED]>Sent: Monday, March 01, 2004 9:08 AMSubject: [meteorite-list] Meteorites / Mining Claims> Hi List,>> I would like to know if you are allowed to hunt for meteorites on mining> claims. If one is>> found, who owns the meteorite, The finder or the claim owner?>> Thanks,.>> Sonny>__Meteorite-list mailing list[EMAIL PROTECTED]http://www.pairlist.net/mailman/listinfo/meteorite-list Do you Yahoo!? Get better spam protection with Yahoo! Mail
[meteorite-list] Re: TEKTITES!! ....METEORITES OR JUST GLASS ???? Discuss..........
Greetings all, Would any of you please explain the differences between Tektites and Apache Tears. Apache Tears are rounded bits of smokey grey obsidian (volcanic glass) found all over the Southwest US. They have a dull black surface and often have perfect regmaglypts when found. To me this would indicate that they were ejected quite high before they fell. When polished they range from nearly opaque black to a nearly clear light gray color. Some have lines or swirls of darker glass that can be seen if held up to a light. Thanks, Art Brasher > >Tektites are melted earth rock. There is a very small number of > people who believe they are from the moon, but the vast majority of the > scientific community believe that is highly improbable. The biggest > question is how you take rock, melt it into a clear glass, and quench it > fairly quickly with out having it full of gas bubbles. They are > different from impact glasses, such as aouelloul and darwin glasses, > which have a frothy bubbly texture. >Tektites are interesting in their own right with numerous shapes, > flight markings and other oddities. The best web site for tektites is > Norm Lehrman's site http://tektitesource.com/ > > tektite but cloaked in arty mystery?> > >Moldavites are also tektites. The biggest differences are the color, > a lovely green, instead of black, and neat pointy delicate shapes, like > hedgehogs on some of them. As a result they are jewelry grade tektites > which expands the interest in them beyond meteorite collectors. They > are also sold as power stones to the gullible who believe that sort of > thing. > >I do carry moldavites on my site, but not other tektites. That is > more because I haven't gotten around to making up a page than that they > are not worthy. I do have a number of tektites in my collection and I > am sure many meteorite collectors do also. > > Eric Olson > http://www.star-bits.com > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Re: TEKTITES!! ....METEORITES OR JUST GLASS Obsidian
Elton, Thanks for the explanation. It amazes me how knowledgeable the members of this list are and how willing you are to share that knowledge. Now, one more question. If I'm out collecting Apache Tears and I should pick up a Tektite, how would I know the difference? If I happened to put that tektite into the tumbler with a batch of Apache Tears would there be any obvious differences when polished? Art Brasher --- EL Jones <[EMAIL PROTECTED]> wrote: > Let me try to get this one right the first time. > > This doesn't address the Lunar meteorite vs Ejecta debate but is a > discussion on how volcanic glass-specifically "Apache Tears" forms > Apache Tears as common term for nodular obsidian. > > The bulk content of the rock obsidian is silica, silicon dioxide-- SiO 2 > which is a light colored, "felsic" mixture. Notice I did not say > "mineral". It is the relatively-fast cooling which forms glass, without > allowing a crystalline structure to form nor, for other mineral-forming > compounds to segregate to form a mineral--a subtle but technical point. > The trace material's found in obsidian are from the "felsic to > intermediate" BRS "pre- mineral compounds/ molecules". Bulk obsidian > composition will be from the bottom (felsic) end of the BRS. and one > would think it would be light in color. Obsidian is dark because, while > it is a glass, it has many impurities which absorb light and make it > appear dark. > > Apache tears are frequently found in stream beds were they have eroded > from a softer "felsic" pumice/scoria-ash in which they form. So they may > on first observation look as it they were spewed from a volcano high > into the air. They are not ejected in the form they are found. They > form after hot ash accumulates. > droplets of silica glass accrete into developing gas pockets. This > allows most gas to escape from within the glass as it pools and grows > in non-crystaline fashion. Obsidian has a relatively high water content, > interestingly enough . The "tear" is more dense than the scoria/pumice/ > tuft which is still highly gaseous. So it settles by this short-lived > sorting action in bands within the ash. > Apache Tears, therefore are a post-ejection form of obsidian which > form rapidly and cease growing into larger veins of obsidian because the > temperature of the scoria/ pumice ash falls below the threshold of the > mineral formation in the lower end of Bowen's reaction series > > __ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Park Forest photos
It is time for me to stir up some more controversy. From all I've seen, Park Forest really doesn't look like meteorite. Only the black parts seem to have fusion crust and it doesn't look as shiny and glazed as you would expect. The grey parts either don't have any crust at all, or it chipped away on impact. They seem to be rough and angular instead of smooth and contoured. Matt Morgan's slice photos are terrific and they plainly show the two different colored materials. Chondrules are clearly visible. It is a very interesting meteorite on the inside, but It is a good thing it was a witnissed fall in a populated area. If it fell in this rockpile we call Arizona without witnesses, I don't think it would ever be found. Art Brasher Jim Strope <[EMAIL PROTECTED]> wrote: University of Chicago Press release. Has nice BIG photos: http://www-news.uchicago.edu/releases/03/030327.meteorite.shtml Jim Strope421 Fourth StreetGlen Dale, WV 26038 Catch a Falling Star Meteoriteshttp://www.catchafallingstar.comDo you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more
Re: [meteorite-list] King tut?
Greetings John and list, I am so glad you explained what a leaverite is. All this time I've been carrying them home, sawing them in half and making myself nuts trying to find somthing in them that isn't there. I sure could have saved a lot of time and trouble if I had learned this sooner. By the way, do you know where I can find some discriminite? Happy Hunting, Art goldmaster <[EMAIL PROTECTED]> wrote: - Original Message -From: "goldmaster" <[EMAIL PROTECTED]>To: "magellon" <[EMAIL PROTECTED]>Sent: Tuesday, June 10, 2003 8:54 PMSubject: Re: [meteorite-list] King tut?> Hi Ken and List>> Most of us that are keen on hunting space rocks and gold nuggets seem to> find a lot of those groups of mineral specimens . In that group are> chuckerites, leaverites and pitcherites . As in chucker rite over thereouta> my way . Or leaver rite there !! Or pitcher rite up under that bush so I> won't dig that gosh darn hot rock up again !! Just so you won't ask what a> hot rock is !! It's a useless good for nothing earth stone that makes a> detector beep !! I hope I answered your question ??> Happy Hunting> John Blennert Do you Yahoo!? Free online calendar with sync to Outlook(TM).
Re: [meteorite-list] I have a meteorite
Hi Kris and list; I don't want to rain on anyone's parade, but your "iron meteorite" sure looks like a mill ball to me. I have a coffee can full of them that look just like your picture. I got so excited finding those little iron meteorites until I sent a couple of them off to the university . Sorry Charlie! Mill balls were commonly used to crush gold and silver bearing ore in the late 19th and early 20th century. Any place there were mines you are likely find mill balls. Art Brasher --- Kris Woolley <[EMAIL PROTECTED]> wrote: > > I have an iron meteorite, found near the Great Salt Lake, Toole, > __ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Re: THE ART OF PHOTOGRAPHING Pictures 101
--- Dave Freeman mjwy <[EMAIL PROTECTED]> wrote: > Dear Tom, List; > Here we go.Get a dark (black felt) non reflective cloth square > maybe Tom, Dave, and List; Over the last several years I have been taking lots of photos of various mineral specimens and a few meteorites I would like to pass along some of what I have learned. *Background color makes a difference in attracting buyers on Ebay. *A poor photo is worse than no photo. *Unless you have perfect supermodel's hands keep your thumbs out of the picture. My photo studio is a heavy cardboard box about 2 foot square with the top and front cut out. My background is a swath of fabric draped inside the box and held in place with cloths pins. I went to several fabric stores and bought one yard each of fabric in various shades of the primary colors plus black and Gray. My lighting is two 150W halogen work lights clamped to the top sides of the box. I don't remember the wavelength but somewhere I read that halogen light is good for color photography. It works for me and I can't imagine waiting for outside light conditions to be just right. I bought my lights from The Home Depot for about $10.00 each and they come with a sturdy clamp and pivoting head for adjusting the angle. Two lights eliminate the shadow but still allow for depth. The concave shapeless area with drapes and folds from the cloth in the box draws the eye of the viewer to stone in the center. By putting a small stand under the stone you can make it appear to float on air against the background. Experimenting with this set up, I have found that different color backgrounds will bring out patterns and details in the subject stone. The background cloth reflects it's color onto the subject just enough to enhance the contrast and bring out the detail. This is the most dramatic in material with highly reflective areas adjoining duller areas, like metal flakes in meteorites. By experimenting with a variety of different color cloths and moving the lighting around you can take a lot of pictures and get that one that really sets off your subject. Ebay buyers are drawn in by the gallery picture. If that half inch square picture in the left hand column doesn't grab their attention they may go right past your auction. Make that picture stand out. My limited experience is that bright red or bright blue backgrounds work. When you are done just fold up your fabric, unplug your lights and store everything in the box. Art Brasher __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
