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chromite

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chromite

Iron chromium oxide, the main chromium ore. It is one of the spinel group of minerals, and crystallizes in dark-coloured octahedra of the cubic system. Chromite is usually found in association with ultrabasic and basic rocks; in Cyprus, for example, it occurs with serpentine, and in South Africa it forms continuous layers in a layered intrusion.



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? Mentioned in ? References in periodicals archive
 
For many years, the metalcasting industry has been using chromite as a specialty sand to produce high quality castings poured with various high temperature steel alloys.
Mining a domestic source of chromite: a mineral deposit in Oregon is ... by Hoyt, Daryl / Modern Casting
Chemical analyses of chromite mineral grains from nine of the meteorites, found at various levels in the quarry, mark the stones as pieces of a single extraterrestrial body, says Wieler.
Meteorites quickly reach Earth by Science News
For example, layered intrusions are subdivided into stratiform and contact deposits, with the stratiform deposits further subdivided into chromite and sulphide-associated deposits.
Magmatic Platinum Group Element Environments in Canada: Present and ... by Theyer, Peter / Geoscience Canada
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