Oct 03, 2012Key Minerals The Copperbelt area (estimated to contain 55.5m tonnes of copper and 3.6m tonnes of cobalt), which runs through Katanga contains 34% of the worlds cobalt resources and 10% of the worlds copper resources, and during the 1960s and 1970s the DRC was the worlds leading producer of these metals. Copper concessions were formerly managed by Gnrale des Carriers et des Mines
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Chromite is found as orthocumulate lenses of chromitite in peridotite from the Earth's mantle.It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites. Ore deposits of chromite form as early magmatic differentiates. It is commonly associated with olivine, magnetite, serpentine, and corundum.
Tungsten, mined since colonial times, is a major export. It has been produced in Queensland and from wolframite and scheelite deposits located on King Island in the Bass Strait.
Diatomite, a rock formed by the accumulation of opaline diatom frustules, is a preferred raw material for the manufacturing of filters. Its uniqueness relies on the high porosity and inertness of the frustules.
Tsygankoite, ideally Mn 8 Tl 8 Hg 2 (Sb 21 Pb 2 Tl) 24 S 48, is a new sulfosalt discovered at the Vorontsovskoe gold deposit, Northern Urals, Russia.It occurs as lath like elongated crystals up to 0.2 mm embedded in calcitedolomiteclinochlore matrix. The associated minerals also include aktashite, alabandite, arsenopyrite, barite, cinnabar, fluorapatite, orpiment, pyrite, realgar