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Unnamed (Ca-analogue of Manganiandrosite-(La)), Baryte, Tilasite, Braunite

Locality: Prozrachnoe Mn deposit, Ust'-Koksa district, Altai Republic (Gorno-Altayskaya Autonomous Oblast'), Western-Siberian Region, Russia

Red prismatic crystals of unnamed Ca-analogue of manganiandrosite-(La) in the quartz veinlet intersecting black braunite ore. Most of this crystals are submerged into transparent vein minerals and are under surface of the polish section. Associating minerals are white baryte (in the central part of the photo) and transparent quartz-like tilasite (the upper right corner of the photo). Analytical data are available on daughter photos. FOV is ~4.5x3 mm. Collected by Vera N. Smol'yaninova in 1983. Pavel M. Kartashov collection (#1081) and photo.

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Photo added: 28th Jun 2007

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