Rhodochrosite

$145.00

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Weinrich MineralsFeatured

3,120 for sale·Member since 2025

An interesting translucent terminated crystallized stalactite of rhodochrosite. In great condition all around.The Kremikovtsi mine, situated near Sofia in Bulgaria, is a massive stratiform-stratabound deposit whose industrial exploitation began in 1959 to supply a major national metallurgical complex before its closure. Geologically, the deposit is hosted within Triassic carbonate sequences, featuring a complex interplay of sedimentary exhalative and hydrothermal processes that formed extensive iron, manganese, and barite ores. Mineralogically, the deposit is celebrated for a rich assemblage that includes large barite crystals, various iron and manganese oxides, and rare species such as manganese-rich norsethite.Norsethite is a rare double carbonate mineral containing barium and magnesium, belonging structurally to the dolomite group. It typically crystallizes in the trigonal system to form sharp, vitreous rhombohedral crystals or small platy clusters that are usually colorless, white, or pale yellow. Due to its high barium content, it possesses a notably high density for a carbonate mineral.