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Tag : Dumortierite

Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite

Author(s) :
M.S. Krzemnicki
- Date : 2013
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Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite. Published in Journal of the Gemmological Association of Hong Kong GAHK, 34, 62-64

Author(s): M.S. Krzemnicki

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Transparent dumortierite and sapphirine from Tunduru, Tanzania

Author(s) :
H.A. Haenni
- Date : 2007
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Transparent dumortierite and sapphirine from  Tanzania. Published in Gems & Gemology, 2007.

Author(s): H.A. Haenni

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