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单词 paratacamite
释义

paratacamiten.

Brit. /ˌparətəˈkɑːmʌɪt/, U.S. /ˈˌpɛrədəˈkɑˌmaɪt/
Origin: Formed within English, by derivation. Etymons: para- prefix1, atacamite n.
Etymology: < para- prefix1 + atacamite n.: see quot. 1907, which reports a talk given in 1905.
Mineralogy.
A green to greenish-black mineral of the hexagonal system that consists of a basic chloride of copper, Cu2(OH)3Cl, and is found as a secondary deposit on other copper minerals.
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the world > the earth > minerals > types of mineral > halides > [noun] > fluorite group > copper hydroxychloride
atacamite1837
remolinite1852
botallackite1865
tallingite1865
paratacamite1905
1905 Nature 13 Apr. 574/2 This new mineral, to which the name paratacamite was given, has the same chemical composition as atacamite.
1907 G. F. H. Smith in Mineral. Mag. 14 173 The name paratacamite has been assigned to the new mineral, because..the percentage chemical composition is the same as that of atacamite.
1950 Mineral. Mag. 29 280 It is paratacamite, not atacamite that occurs at the famous Cornish locality, Botallack mine, St. Just.
1994 Amer. Antiq. 59 452 Analysis of these samples and residue from molds shows that the majority of the ores were chlorides such as atacamite and paratacamite.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1905
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