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Sphalerite has been found as a pseudomorph, taking the crystal structure of galena, tetrahedrite, barite and calcite. [13] [15] Sphalerite can have Spinel Law twins, where the twin axis is [111]. The chemical formula of sphalerite is (Zn,Fe)S; the iron content generally increases with increasing formation temperature and can reach up to 40%. [6]
Zinc produced from sphalerite is used for many purposes, including mixing with copper to produce brass, rust protection of iron & steel, and for making modern American pennies (although the cost of making each zinc penny is >1¢). The crystalline sphalerite specimen shown above is from the well-known Central Tennessee Zinc District (a.k.a ...
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The zinc in sphalerite is also used to produce brass. This sample was extracted in Creede, Colorado, and features black tetrahedral crystals of sphalerite up to 8 mm (0.31 in) in size, with minor chalcopyrite and calcite, in a 4.5 cm × 3.0 cm × 2.0 cm (1.77 in × 1.18 in × 0.79 in) matrix.
The Albanian Wikipedia (Albanian: Wikipedia Shqip) is the Albanian language edition of Wikipedia started on 12 October 2003. As of 18 December 2024, the Wikipedia has 101,044 articles and is the 73rd-largest Wikipedia. [1]
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Jashar Rexhepagiq (Serbo-Croatian: Jašar Redžepagić; 1929–2010) was a Yugoslav Albanian and Kosovar scholar and writer. Jashar Rexhepagiq was born in Plav in Montenegro and went to school in Berane and Peja.
[1] The islets fall phytogeographically within the Illyrian deciduous forests terrestrial ecoregion of the Palearctic Mediterranean forests, woodlands, and scrub biome . The vegetation of the islands includes many communities of a Mediterranean type, while the most important habitats include the Mediolitoral and Infralitoral zone. [ 1 ]