plumositen.
/ˈpluːməsʌɪt/, U.S. /ˈpluməˌsaɪt/ Mineralogy.
Any of a group of minerals which occur as tufts of fibrous crystals and consist of sulphides and antimonides of lead and some related species, including jamesonite, zinkenite, berthierite, and (esp.) boulangerite. Cf. feather-ore n. at feather n. Compounds 2a.
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the world > the earth > minerals > types of mineral > sulphides and related minerals > sulpho-salts > [noun] > lead-iron antimony sulphide
jamesonite1825
plumosite1854
heteromorphite1865
wolfsbergite1868
1854 J. D. Dana Syst. Mineral. (ed. 4) II. 76 The name Feather Ore or Plumosite being inapplicable, since a massive variety has been found, Rammelsberg substituted Heteromorphite.
1881 Academy 7 May 341 The recent discovery of plumosite which is a double sulphide of lead and antimony.
1914 Brit. Mus.: Return 225 in Parl. Papers (H.C. 186) LXXI. 193 Plumosite from Foxdale mine, Isle of Man.
1997 Geologica Carpathica 48 387 Although ‘plumosite’ has been regarded as synonymous with boulangerite in recent years, it is proposed that the descriptive name ‘plumosite’ be used for all such felted masses of Pb-Sb sulphosalts, including those with the compositions of jamesonite and berthierite.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1854