
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite
Author(s) : -
Date : 2013
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