Novembr 16-18—COLUMBIA, SOUTH CAROLINA: Annual show; The Columbia, SC Gem and Mineral Society; Fri. 10-6, Sat. 10-6, Sun. 12-5
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 Post subject: Green Stone - Tourmaline Family?
PostPosted: Mon Sep 03, 2012 9:51 pm 
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Joined: Mon Sep 03, 2012 1:49 pm
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Location: Colima, Mexico (on the pacific)
I am trying to identify parts of a friend's, late father's, gem collection from the 1930´s to the 1950's in Mexico. Almost half of his collection is tourmaline or elbaite related specimens that were mined in Pala, San Diego County, Ca. (it's about a 6 carat specimen in the photo)


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 Post subject: Re: Green Stone - Tourmaline Family?
PostPosted: Wed Sep 26, 2012 9:32 am 
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Location: South Dakota
It looks like Euclase

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 Post subject: Re: Green Stone - Tourmaline Family?
PostPosted: Sun Oct 07, 2012 8:12 am 
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it is vivianite, keep away from light or it will darken and flake apart with time.


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