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Unknown garnet
  
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Roger Warin




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PostPosted: Jun 25, 2022 04:52    Post subject: Unknown garnet  

Hello,
I was asked a question. The answer is not obvious since the photos are poor.
I retain 2 facts : the color and the equant aspect.
Origin: Pakistan.
I thought of uvarovite or even tsavorite.
The gangue may provide a clue.
Thanks.
Roger.



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Bob Morgan




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PostPosted: Jun 25, 2022 08:06    Post subject: Re: Unknown garnet  

They might be Grossulars from the Vilyui River in Russia.
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Bob Carnein




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PostPosted: Jun 25, 2022 09:27    Post subject: Re: Unknown garnet  

Could be demantoid (andradite). Mindat lists several localities in Pakistan.
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Roger Warin




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PostPosted: Jun 25, 2022 15:18    Post subject: Re: Unknown garnet  

Demantoid garnet,
Yes, the most probable variety remains the best answer.
Thank you a lot.
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Riccardo Modanesi




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PostPosted: Jun 26, 2022 14:53    Post subject: Re: Unknown garnet  

Hi to everybody!
There are many possibilities:
i) andradite (var. demantoid);
ii) grossular (var. tsavorite);
iii) the likeliest in my opinion: uvarovite!
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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Bob Carnein




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PostPosted: Jun 26, 2022 17:50    Post subject: Re: Unknown garnet  

I don't know whether uvarovite, a garnet with a very restricted geologic provenance, occurs in Pakistan, but there are no photos of it on Mindat.
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Matt_Zukowski
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PostPosted: Jun 26, 2022 20:00    Post subject: Re: Unknown garnet  

Can you tell us what the two minerals are that make up the matrix? Are you sure it comes from PAK?
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Roger Warin




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PostPosted: Jun 27, 2022 07:43    Post subject: Re: Unknown garnet  

Hello Matt,
Alas, I have only ever seen these photos of the unknown mineral. The question was posed to me.
My photos are still better!
Thank you for your interest in this problem of a friend.
I underline a point: the rock (?°) is almost colorless (feldspar?).
Wouldn't it be an orthoclase with another secondary mineral?
From Pakistan, yes.
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Roger Warin




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PostPosted: Aug 01, 2022 23:43    Post subject: Re: Unknown garnet  

Hello,
The analysis showed that this mineral of green tourmaline group was indeed a dravite.
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