Saturday, June 27, 2015

40.10 carat tourmaline from a 2007 find in Mozambique. Tourmaline is a crystal boron silicate mineral. (G10530) from the National gem Collection Amethyst

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40.10 carat tourmaline from a 2007 find in Mozambique. Tourmaline is a crystal boron silicate mineral. (G10530) from the National gem Collection

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