I can tell by looking. But professional minerology I leave to professional's
I only send off specimens that are deemed meteorites. I leave the final classification to them. However, since the beginning of this year, my aims have changed. I am tired of simply saying that this is a meteorite and give a general idea of type, then send it off for detailed classification. I am on disability for now; I have plenty of time to recover and persue, or volunteer time at the local university to do the classifications with their equipment. And I will be looking into this in the coming weeks and find out where my aims will go. Steve Schoner/ams --- David Freeman <[EMAIL PROTECTED]> wrote: > Dear List, > I don't know about most of the list members, but > after slicing a > meteorite, I still can not tell by looking, the > difference between an L > and an H with a loupe or a magnet.......AND, I have > been cautioned by a > very professional meteorite friend to not even get > into the habit of > doing the guessing. So, back to having the > professional with the > optical and microprobe means to do the mineralology, > be it large (in my > opinion, not huge) sliced meteorite, or micro crumb. > Best, > Dave Freeman > > [EMAIL PROTECTED] wrote: > > > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> writes: > > > > ......infamous B**** Specks....[snip]....How > do you know, other > > than the reputation of the seller behind it? > > > > How does the average collector know that a 50-gram > slice is what the > > seller says it is? You, Steve, are certainly > sophisticated enough to > > visually assess a specimen with great accuracy, > and do some labwork to > > establish authenticity, but the "average > collector" probably > > can't/doesn't do either. Sure, most everyone with > a basic grounding > > in meteorites can tell the difference between all > the "familiar" > > collectible rocks. But past that, I think that > very, very few > > collectors can visually discern the nuances > between one unfamiliar > > Ordinary Chondrite and the next, or do lab > follow-up on purchased > > specimens << so that the minerology (sic) of such > can be confirmed via > > optical and or microprobe means. >> . > > > > > > > > So it seems unfair to me to focus solely on tiny > specimens and point > > out the difficulty of their verification, and > complain that > > the (subjective) reputation of the seller is the > only available > > criterion for buying them. Reputation alone is > what the majority of > > casual collectors must rely on for any purchase, > no matter how big or > > small the specimens they buy. > > > > > > > > Gregory > > > > __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
