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单词 nigerite
释义 nigerite Min.|ˈnaɪdʒəraɪt|
[f. Niger-ia, the name of the country in which it was discovered + -ite1.]
A basic oxide of zinc, iron, magnesium, tin, and aluminium, (Zn,FeII,Mg)(Sn,Zn)2(Al,FeIII)12O22(OH)2, found as brown or red hexagonal platelets.
1946Jacobson & Webb in Bull. Geol. Surv. Nigeria No. 17. 11 The dykes to the south-east of Oke Oloke are of special interest on account of the discovery of a new tin–zinc mineral, nigerite, which occurs in quartz–andalusite–sillimanite veins associated with the albitized pegmatites.1947Times 2 Dec. 6/3 Specimens of nigerite, a new tin mineral, recently analysed and described by the Museum's Department of Mineralogy, have been given.1974Mineral. Mag. XXXIX. 837 (heading) Nigerite in the tin–tantalum pegmatites of Amapá, Brazil.
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