Thanks for your comments Jeff. That makes sense as far as my understanding of metal meteorite goes. Maybe I should get the handbook of iron meteorites (~$1400). As I am sure you know, Kamacite and Taenite both form in crystals. Plessite I would then imagine is a certain pattern of the Kamacite and Taenite crystals. I am a stone collector myself so my ignorance in iron meteorites is showing. But now, I guess I can look at my Taza etched pieces, and the unusual almost star like etch it creates...likely mimics this pattern to some degree(?). So then, if I took nickel out of my Tinnie, being it is a axatite, or I guess I should say, if it would have formed at a different temperature and therefore had a different degree of nickel in it, it might create a pattern close to Taza when etched. While this was a private message Jeff, I think this might be of interest to the group and perhaps some iron expert out there can add to this, I hope you don't mind. (If anyone can reference me to a meteorite book other the handbook of irons on this subject, I might own it). Mark Bostick Strangely....talking about meteorites on the e-mail group...:-) ----- Original Message ----- From: Jeff Kuyken Sent: Tuesday, February 10, 2004 11:11 PM To: MARK BOSTICK Subject: Plessite G'day Mark, The way I understand it is that Kamacite and Taenite are actually metallic iron minerals. Plessite is a mixture of these two but not actually a mineral in itself. Hope this helps. Cheers, ----- Original Message ----- Sent: Wednesday, February 11, 2004 9:00 AM Subject: [meteorite-list] Tucson 2004 and questions
Hello Everyone, My typically long show report is finished, and should be up on my column at MeteoriteTimes shortly. I won an item I believe at the Lang auction, if someone who has their e-mail address handy could forward this e-mail to them....I would appreciate it. (I think I won the Guffey). I purchased a part slice of Tinnie (NM) in Tucson. It is a plessitic axatite. I know Taza is a plessitic octahedrite....so now I wonder...what does plessitic mean? I wanted to get one of Dorothy Norton's Mammoth books at the auction but because I was working it, didn't find the chance. Could you please e-mail me Dorothy or would someone please forward this e-mail to her so that she knows I am interested. (Fred Hall mentioned it was a good). Ok, enough I's. Mark Bostick
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