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Manganese mines in the United States (5 P) This page was last edited on 23 August 2017, at 23:10 (UTC). Text is available under the Creative Commons Attribution ...
Manganese is a chemical element with the symbol Mn and atomic number of 25. It is found as the free element in nature (often in combination with iron), and in many minerals. The free element is a metal with important industrial metal alloy uses.
Mining near Chiatura. In 1972, facilities put into operation in Chiatura included new mines equipped with ore-dressing plants, a central final concentration plant for processing low-grade manganese ores into higher-grade ores, a central flotation plant, a plant for dressing carbonate ores, and a number of enterprises designed for improving the grade of ores.
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The lowest level of the ore zone is a 0.1 to 0.5 metres (3.9 in to 1 ft 7.7 in) layer of massive manganese oxides and hydroxides with some manganese carbonate (rhodochrosite). Above this is the main ore zone, a 3 to 9 metres (9.8 to 29.5 ft) layer of plates of similar minerals between bands of clay, silica and iron bearing material.
The Saihangol mine is a mine located in the north of Mongolia. Saihangol represents one of the largest manganese reserve in Mongolia having estimated reserves of 293 million tonnes of manganese ore grading 36.7% manganese metal.
The Delinești mine is a large mine in the west of Romania in Caraș-Severin County, 38 km east of Reșița and 448 km west of the capital, Bucharest.Delinești represents one of the largest manganese reserve in Romania having estimated reserves of 7.5 million tonnes of manganese ore grading 20% manganese metal.
The Cuyuna Range mine is a mine located in the north of the United States in Minnesota. Cuyuna Range represents one of the largest manganese reserve in the United States having estimated reserves of 247 million tons of manganese ore grading 8% manganese metal.