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 Post subject: Tsavorite ID with pics
PostPosted: Tue Feb 27, 2018 9:26 pm 
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Joined: Tue Feb 27, 2018 7:52 pm
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I'm trying to identify a green gemstone that I bought as tsavorite. I'm including the results of some tests i did, as well as photos taken through my microscope and I'd greatly appreciate your opinion. Let me know if you need any more info (I have most basic gem instruments). Thanks!

Weight: 2.5ct
Dimensions: 7.6 x 6.0 x 4.6mm
Fluorescence: None (Lw and sw)
Polariscope: Looks like ADR


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 Post subject: Re: Tsavorite ID with pics
PostPosted: Tue Feb 27, 2018 10:19 pm 
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Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21602
Location: San Francisco
Hi Ross.
Just answered your email.
I removed your pics because they were way too large. Please look at the header above.
Keep the size to around 600px.
Thanks.

Barbra Voltaire wrote:
Very sorry to report your photos are of no use as they are far too blurry.
Couple of things will identify your stone as tsavorite.

Might need a gemologist to sort these out for you. If your gemologist owns a GemmoRaman, it can be positively identified in seconds.
Refractive index: 1.740
Specific Gravity; 3.60-3.68
Also tsavorite will be attracted to a rare-earth magnet. It won’t be picked up like Demantoid, but if you float it on a thin sheet of styrofoam in water and put your magnet close, it will make the styrofoam move towards it.


For inclusions in tsavorite, check here
https://www.geminterest.com/inclist.php ... 5Tsavorite


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 Post subject: Re: Tsavorite ID with pics
PostPosted: Wed Feb 28, 2018 1:33 am 
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Thank you so much for your response and I'm sorry about the pictures. I'll try to take better ones tomorrow. In the meantime, I did do the magnetism test, and the stone showed a weak/moderate magnetic response. Will be in touch!


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