Re: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
"E.J" <[EMAIL PROTECTED]> wrote:[EMAIL PROTECTED] wrote: >Steve and mark- >I am selling these small thin sections of park Forest and if you think I took the time carefully cut them down in size that's fine. What purpose would this serve? The cover slip completely covers the specimen so it is not to get two out of one. Steve, you have jumped on me for this before...it is the way my thin section maker made them. It is a thin section, sorry the slide doesn't fit your scope. >-- >Rob Wesel > Rob, I think having a "standard size" size allows for indexing a slide's features so another researcher can return to the same point(s) on a different microscope. Regards, Elton Elton, Absolutely right! And that is one of the many reasons for "standard" sized petrologic slides (26 mm x 46 mm). These new odd ball sizes might be made with the right thickness, and they might be okay for the hobbyist, but for scientific purposes they might be virtually worthless. And how can I be certain that they are even made properly if the standard is not observed? Also, indexing is essential for microprobe work and going from one scope to another. It is also essential for proper notation of observed characteristics. These points of reference are lost with non-standard odd ball sizes. There are manufacturers of standard petrologic slide blanks, and also the special boxes for storing such. Anyway, these new odd ball slides being touted are annoying to me. I certainly would not buy any, for scientific reasons and for preserving the standard widely accepted by petrologists. Presentation is everything when it comes to thin sections. Steve Schoner/ams __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
[EMAIL PROTECTED] wrote: Steve and mark- I am selling these small thin sections of park Forest and if you think I took the time carefully cut them down in size that's fine. What purpose would this serve? The cover slip completely covers the specimen so it is not to get two out of one. Steve, you have jumped on me for this before...it is the way my thin section maker made them. It is a thin section, sorry the slide doesn't fit your scope. -- Rob Wesel Rob, I think having a "standard size" size allows for indexing a slide's features so another researcher can return to the same point(s) on a different microscope. Regards, Elton __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
Look, I am not interested in arguing with you nor do I have any "agenda" or am I accusing you of such. Industry standard is industry standard-- that is 1 13/16 x 1 1/16" x .065" I have seen many, many petrologic slides, not only of meteorites but common rocks, and these are very close to the above stated sizes with little variation. And an accepted standard for petrologic slides works for all standard petrologic microscope equipment. If your slides are off standard, irregardless if they deviate from this size I would not be interested in any of them no matter how well they might be made. I want something that can be use with all "standard" petrologic microscopes and devices. If yours are not standard, with specimen off center and the slide 1 x 1.5 inches, then maybe you should find a better maker. And there are many such petrologic slide makers out there. That is all I can say. Steve Schoner/ams --- [EMAIL PROTECTED] wrote: > Steve and mark- > I am selling these small thin sections of park > Forest and if you think I took the time carefully > cut them down in size that's fine. What purpose > would this serve? The cover slip completely covers > the specimen so it is not to get two out of one. > Steve, you have jumped on me for this before...it is > the way my thin section maker made them. It is a > thin section, sorry the slide doesn't fit your > scope. Many have sold and the buyers are happy. > Please stop suspecting that I have an agenda with > these, they are well made and I can not change their > size to make them bigger for your scope. I will sell > all that I have, instead of bowing to your > suspicion, and go for a larger size if I ever have > more made. > No devious profit motive, no intent to thwart your > microscope, no new world order for thin > sections...relax. > -- > Rob Wesel > -- > We are the music makers...and we > are the dreamers of the dreams. > Willy Wonka, 1971 > > __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
Steve and mark- I am selling these small thin sections of park Forest and if you think I took the time carefully cut them down in size that's fine. What purpose would this serve? The cover slip completely covers the specimen so it is not to get two out of one. Steve, you have jumped on me for this before...it is the way my thin section maker made them. It is a thin section, sorry the slide doesn't fit your scope. Many have sold and the buyers are happy. Please stop suspecting that I have an agenda with these, they are well made and I can not change their size to make them bigger for your scope. I will sell all that I have, instead of bowing to your suspicion, and go for a larger size if I ever have more made. No devious profit motive, no intent to thwart your microscope, no new world order for thin sections...relax. -- Rob Wesel -- We are the music makers...and we are the dreamers of the dreams. Willy Wonka, 1971 __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
Humm, I did not realize that is what they were doing and that would explain why the specimen is off center. It was centered when the 1x3 inch was made and then they cut it. But even then cutting a 1 x 3 inch slide does not make it even close to standard, 1 13/16" x 1 1/16" x .062" And this is being done for sheer profit? These slides need to be at the industry standard. Exactly the way that petrologic slides have been made for over a hundred years. They are certainly not simple microscope slides, whole or cut in half to maximize profit. These must fit standard petrologic slide equipment to be useful scientifically. So, now that I understand. I certainly will not consider any of these "non standards" for my growing slide collection, regardless of how "cheap" they might be. (Besides, they would never work with my polarizer which is set for "standard" sized petrologic slides) Steve Schoner/ams http://www.geocities.com/american_meteorite_survey --- mark ford <[EMAIL PROTECTED]> wrote: > > Steve, > > Yep I have noticed this too, 'Half size slides' seem > to go for a similar > price to full size ones, so you can see exactly why > they do it. > > It seems to me that people are getting 'proper size > slides' and cutting > them in half then re-mounting them. - Fair enough I > suppose, but as you > say they are next to useless for proper study! > > > > Mark F. > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] "Odd ball" non-standard petrologic slides on eBay
Steve, Yep I have noticed this too, 'Half size slides' seem to go for a similar price to full size ones, so you can see exactly why they do it. It seems to me that people are getting 'proper size slides' and cutting them in half then re-mounting them. - Fair enough I suppose, but as you say they are next to useless for proper study! Mark F. __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] "Odd ball" non-standard petrologic slides on eBay
I have been following the eBay auctions for meteorite petrologic slides... and I am appalled. What is happening there with these new guys? Standard petrologic slides for any rock section is: 1 13/16" x 1 1/16" x .062" I've see some 1" x 3" and then worse still, those that are standard sized but with the specimen off to the end to make room for the details of the find and of the specimen. That much detail is not needed on the slide. Just the Meteoritical society approved name is enough. And-- Standard petrologic slides should be the standard size (1 13/16 x 1 1/16 x .062) with the specimen as close to center as possible. This is to allow for centering on certain crystals when the slide is on the stage for rotation. To offset an inch or more may be too much. Michael Blood, Jim Strope, Dean Bessey had it right-- every slide I have bought from them have been fantasitic, and properly made. But these new guys with their non-standard slides? What kind of "standard" are they setting, and how good is the preparation? I have my doubts. Steve Schoner http://www.geocities.com/american_meteorite_survey __ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
