wurtzite

[wurt-sahyt]
noun Mineralogy.
a dimorph of sphalerite, zinc sulfide, ZnS, similar in structure to greenockite and brownish-black in color.

Origin:
1865–70; < French, named after Charles Wurtz (1817–84), French chemist; see -ite1

wurtzitic [wert-sit-ik] , adjective
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Encyclopedia Britannica
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wurtzite

a zinc sulfide mineral that occurs typically in Potosi, Bolivia; Butte, Mont.; and Goldfield, Nev. It is a rare and unstable (at temperatures below 1,020 C, [1,870 F]) hexagonally symmetrical modification of sphalerite, to which it inverts crystallographically; it may be made artificially from sphalerite by rapid cooling from 1,020 C. For detailed physical properties, see sulfide mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
It exits in two structures wurtzite and zinc blend type cubic.
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