Blyava Cu deposit, Sakmara Zone, Mednogorsk District, Orenburgskaya Oblast', Southern Urals, Urals Region, Russia

Urals-type massive sulphide deposit. A broad diversity of soluble Fe2+, Cu, Zn, Mg, Al sulphates occurred in the oxidation zone of this deposit.

Exploited from the 1940s to the 1960s, first from an open pit (now flooded), and later by underground mining.

References:
- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 616.

- Belogub, E.V., Novoselov, K.A., Yakovleva, V.A., and Spiro, B. (2008): Supergene sulphides and related minerals in the supergene profiles of VHMS deposits from the South Urals. Ore Geology Reviews 33, 239-254.