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Mysterious inclusions 2 (quite difficult one)
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=19&t=12294
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Author:  cascaillou [ Sun Sep 26, 2010 9:30 pm ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

Quote:
: The mineral is Ba, Ti, V and Cr oxide!


ankangite then. I didn't know of this mineral. Nice piece

Author:  Egor Gavrilenko [ Mon Sep 27, 2010 3:47 am ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

YES !!!

Congatulations!

Here is your...
Image


And colorless mineral in the second photo seems to be Celsian, rare Ba-feldspar.
These inclusions were mentioned in this GO thread.
See also Gems&Gemology, Spring 2009, 71-72 pp.

Author:  cascaillou [ Mon Sep 27, 2010 10:35 am ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

do you know where such ankangite included quartz are beeing found exactly?

Author:  Egor Gavrilenko [ Mon Sep 27, 2010 10:56 am ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

No, I don't. If somebody knows the exact locality, please tell me.

Author:  Barbra Voltaire [ Mon Sep 27, 2010 11:03 am ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

There is an add for some on eBay here indicating Brazil as local:
http://cgi.ebay.com.sg/QUARTZ-ANKANGITE ... 0407796441

and I found another reference listing the source as Corinto Region, Minas Gerais, Brazil.

Author:  Egor Gavrilenko [ Mon Sep 27, 2010 5:04 pm ]
Post subject:  Re: Mysterious inclusions 2 (quite difficult one)

Barbra Voltaire wrote:
There is an add for some on eBay here indicating Brazil as local:
http://cgi.ebay.com.sg/QUARTZ-ANKANGITE ... 0407796441

and I found another reference listing the source as Corinto Region, Minas Gerais, Brazil.



Thanks for the references!!!

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