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Sphalerite is an important ore of zinc; around 95% of all primary zinc is extracted from sphalerite ore. [42] However, due to its variable trace element content, sphalerite is also an important source of several other metals such as cadmium, [ 43 ] gallium, [ 44 ] germanium, [ 45 ] and indium [ 46 ] which replace zinc.
Main stage calcite in the Central Tennessee Mining District dates to 260±42 Ma (= Late Permian). Locality: attributed to a mine near the town of Carthage, Smith County, north-central Tennessee, USA Photo gallery of sphalerite:
English: Black tetrahedral crystals of sphalerite up to 8 mm in size across this matrix (4.5 × 3.0 × 2.0 cm) with chalcopyrite and calcite. Found from Creede, Mineral County, Colorado, USA. Found from Creede, Mineral County, Colorado, USA.
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.
Chemically, it is cadmium sulfide, and occurs as a bright yellow coating on sphalerite or siderite in vugs, deposited by meteoric water. [ 4 ] It was discovered in 1955 in the Hector-Calumet mine, Keno-Galena Hill area, Yukon Territory and named in honour of mineralogist James Edwin Hawley (1897–1965), a professor at Queen's University in ...
Voting period ends on 8 Oct 2021 at 18:09:09 (UTC) Original – Black tetrahedral crystals of sphalerite up to 8 mm in size across this matrix (4.5 × 3.0 × 2.0 cm) with chalcopyrite and calcite. Found from Creede, Mineral County, Colorado, USA. Reason Good capture. High resolution. Articles in which this image appears Sphalerite FP category ...
Zaman (Turkish:, literally "time" or "era"), sometimes stylized as ZAMAN, was a daily newspaper in Turkey. Zaman was a major, high-circulation daily [3] before government seizure on 4 March 2016 (the circulation was around 650,000 as of February 2016 [4]). It was founded in 1986 and was the first Turkish daily to go online in 1995. [5]
Date or dates may refer to: Date (fruit), the fruit of the date palm (Phoenix dactylifera) Jujube, also known as red date or Chinese date, the fruit of Ziziphus jujuba;