1) Arsenic mineral 2) Important ore of cobalt 3) Mineral 4) Orthorhombic mineral 5) Used as an ore of cobalt
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https://www.crosswordclues.com/clue/cobaltite
Cobaltite is a sulfide mineral composed of cobalt, arsenic and sulfur, CoAsS. It contains up to 10 percent iron and variable amounts of nickel. Structurally it resembles pyrite (FeS2) with one of the sulfur atoms replaced by an arsenic atom. Although rare it is mined as a significant source of the strategically important metal cobalt. Secondary we...
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http://en.wikipedia.org/wiki/Cobaltite
• (n.) A mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt.
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http://thinkexist.com/dictionary/meaning/cobaltite/
a cobalt sulfoarsenide mineral in which iron commonly replaces part of the cobalt [(Co,Fe)AsS], that occurs in high-temperature deposits. Notable ... [1 related articles]
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http://www.britannica.com/eb/a-z/c/102
Cobaltite (cobalt glance) is an ore of cobalt consisting of a cobalt arsenosulphide of the formulae CoAsS and has a relative hardness of 6. It is usually found in high temperature deposits, disseminated in metamorphic rocks, or in vein deposits with other cobalt and nickel minerals.
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Cobalt arsenic sulfide
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http://www.translationdirectory.com/glossaries/glossary075.htm
[
n] - a rare silvery-white mineral
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http://www.webdictionary.co.uk/definition.php?query=cobaltite
noun a rare silvery-white mineral; important ore of cobalt
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https://www.encyclo.co.uk/local/20974
a mineral, cobalt arsenic sulfide, CoAsS, silver-white with a reddish tinge: an end member of a series of solid solutions that includes gersdorffite; used as an ore of cobalt.
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https://www.infoplease.com/dictionary/cobaltite
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