The occurences of Kamenka are restricted to xenoliths of talc-altered ultramafic rocks in the gneissic marginal part of a granite massif. These occurences are thin glimmerite veins with rare, poor-quality emerald
Ref: E.Ya. Kievlenko, Geology of gems, 2003, p. 84
Gem list contains entries from all listed localities in region.
Localities in this Region