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Identity HelpCan someone please help me identify this?
12th Nov 2019 19:50 UTCMonika Yost
Thank you
12th Nov 2019 20:22 UTCKyle Beucke 🌟
It looks like it might be secondary copper minerals (azurite and malachite?) in vein or altered rock that was polished.
Kyle
12th Nov 2019 22:01 UTCThomas Lühr Expert
As for the 'trollite': I think it is misspelled for tyrolite, which is also a copper mineral.
13th Nov 2019 00:01 UTCJosé Zendrera 🌟 Manager
Have seen this material in ebay. Although the seller is from Pakistan, item description states the stones origin is Afghanistan ( https://www.ebay.es/itm/Wow-708-carats-stunning-Trollite-Cabochon-From-Pakistan/233224226515?hash=item364d3f46d3:g:HBIAAOSwKRVc1tT9 ).
BTW, tyrolite, chrysocolla, azurite and malachite are listed in Afghanistan Mindat page but there are not photos of any of them.
Without analisys hard to say more than copper mineral embedded in what seems to be a quartz rock but if the seller says "trollite" (for tyrolite), why not?
BTW, tyrolite, chrysocolla, azurite and malachite are listed in Afghanistan Mindat page but there are not photos of any of them.
Without analisys hard to say more than copper mineral embedded in what seems to be a quartz rock but if the seller says "trollite" (for tyrolite), why not?
14th Nov 2019 18:37 UTCMonika Yost
13th Nov 2019 01:44 UTCFrank K. Mazdab 🌟 Manager
I took the blue as being lazurite (or maybe afghanite), the white largely calcite (though it does seem to have that "glassiness" of sugary quartz), the described "mica" being errant phlogopite flakes, and the rusty areas being partially decomposed pyrite (because I pictured the samples as mine run laying around on the surface, exposed to the elements).
But I could also easily believe instead that it really is a blue copper mineral in quartz, or maybe even blue lazulite in quartz. Certainly a drop of vinegar on the back of the white mineral would quickly prove (or disprove) the calcite component of my initial cheap lapis theory.
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Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 26, 2024 07:44:46