Posnjakite

Posnjakite is a hydrated copper sulfate mineral. It was discovered in the Tungsten deposit of in Karaganda Region in Kazakhstan and described in 1967 by (1926–1987) and (1910–1976) and named after geochemist (1888–1949).

Posnjakite

Posnjakite is a hydrated copper sulfate mineral. It was discovered in the Tungsten deposit of in Karaganda Region in Kazakhstan and described in 1967 by (1926–1987) and (1910–1976) and named after geochemist (1888–1949).