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Stillwater Mining Company (NYSE: SWC) is a palladium and platinum mining company with headquarters located at Littleton, Colorado, United States. It is the only palladium and platinum producer in the USA. [1] The only other North America based palladium/platinum producer is North American Palladium, located in Canada.
Naturally occurring platinum and platinum-rich alloys were known by pre-Columbian Americans for many years. [5] However, even though the metal was used by pre-Columbian peoples, the first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger (1484–1558) as a description of a mysterious metal found in Central American mines between ...
Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment, and jewelry. Palladium is a key component of fuel cells, in which hydrogen and oxygen react to produce electricity, heat, and water. Ore deposits of palladium and other PGMs are rare.
The source of platinum and palladium deposits is ultramafic rocks which have enough sulfur to form a sulfide mineral while the magma is still liquid. This sulfide mineral (usually pentlandite , pyrite , chalcopyrite , or pyrrhotite ) gains platinum by mixing with the bulk of the magma because platinum is chalcophile and is concentrated in sulfides.
The Modikwa platinum mine is a large underground mine in the north-eastern part of South Africa northwest of Burgersfort, Limpopo. It is part of the Bushveld Igneous Complex . Modikwa represents one of the largest platinum reserves in South Africa having estimated reserves of 215.2 million tonnes of ore grading 2 g/t platinum , 1.87 g/t ...
North American Palladium Ltd. is a former Canadian mining company that operated between 1968 and 2019 and that since 1993 operated the Lac des Iles mine in the Lac des Îles igneous complex of the Thunder Bay District of Ontario. The company primarily mined and explored for palladium but also for gold.
Mines of the Merensky Reef. The Merensky Reef is a layer of igneous rock in the Bushveld Igneous Complex (BIC) in the North West, Limpopo, Gauteng and Mpumalanga provinces of South Africa which together with an underlying layer, the Upper Group 2 Reef (UG2), contains most of the world's known reserves of platinum group metals (PGMs) or platinum group elements (PGEs)—platinum, palladium ...
The Two Rivers mine is a large bord and pillar mine located in the north-eastern part of South Africa in Steelpoort, Limpopo.Two Rivers represents one of the largest platinum reserves in South Africa having estimated reserves of 100 million tonnes of ore grading 1.8 gr/t platinum, 1.07 gr/t palladium and minor grades of gold, rhodium, ruthenium and iridium. [1]