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单词 plagionite
释义

plagioniten.

Brit. /ˈpleɪdʒɪənʌɪt/, U.S. /ˈpleɪdʒiəˌnaɪt/
Origin: A borrowing from German. Etymon: German Plagionit.
Etymology: < German Plagionit (G. Rose 1833, in Ann. der Physik u. Chemie 28 421) < ancient Greek πλάγιος oblique (see plagio- comb. form) + -n- , connective element (perhaps representing the final letter of the neuter form πλάγιον ) + German -it -ite suffix1.
Mineralogy.
A rare blackish grey mineral occurring as thick, tabular crystals of metallic appearance and consisting of a monoclinic sulphide of lead and antimony, Pb5Sb8S17.
ΘΚΠ
the world > the earth > minerals > types of mineral > sulphides and related minerals > sulpho-salts > [noun] > lead antimony sulphide
plagionite1835
zinckenite1835
kilbrickenite1841
geocronite1842
plumbostib1844
schulzite1849
boulangerite1868
jordanite1868
robinsonite1951
1835 Rec. Gen. Sci. 1 271 (heading) Plagionite.—The crystals of this mineral belong to the oblique rectangular prismatic system of Beudant.
1866 H. Watts Dict. Chem. IV. 661 Plagionite, a sulphantimonite of lead occurring at Wolfsberg in the Hartz.
1959 C. S. Hurlbut Dana's Man. Mineral. (ed. 17) 283 Other minerals of similar composition [to jamesonite] but different habit are: plagionite, Pb5Sb8S17; semseyite, Pb9Sb8S4; geocronite, Pb5(Sb,As)2S8.
1990 Proc. Ussher Soc. 7 258/2 Sulphosalt dominated assemblages consist of tetrohedrite..and plagionite (Pb5Sb8S17) intergrowths developed along intergrain fractures.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1835
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