Color origin of phenakites from the Ural emerald mines.

Autor: Nikolaev, Anatoliy G.1, Nizamutdinov, Nazym M.1, Popov, Michael P.2
Zdroj: Gems & Gemology. Spring2018, Vol. 54 Issue 1, p101-102. 2p.
Databáze: Academic Search Ultimate
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