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Unknown Turquoise / Green Mineral
June 11, 2012 03:49AM
Bought this about 10 years ago in a rock and mineral shop. Dont have a clue to what it is.

Quartz does scratch it.
It can scratch fluorite.

I did a bunch of searching and it looks like Dioptase (Hardness of 5). Cant be sure though, I dont know much



Edited 2 time(s). Last edit at 06/11/2012 03:55AM by Daniel jacobs.
Attachments:
open | download - turq.jpg (72.2 KB)
open | download - turq2.jpg (64.4 KB)
avatar Re: Unknown Turquoise / Green Mineral
June 11, 2012 04:17AM
    
Yes Daniel! You are correct! It is dioptase, probably from the type location, Altyn Tyube, Kazakhstan.

regards,
stephanie smiling smiley



Edited 1 time(s). Last edit at 06/11/2012 04:18AM by Stephanie Martin.
Re: Unknown Turquoise / Green Mineral
June 11, 2012 09:22AM
    
Correct, its Dioptase. And judging from the matrix (coarse crystalline Calcite), indeed it's most probably from the type-locality of Altyn-Tyube, Kazakhstan.

Lefteris.
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