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单词 stilpnomelane
释义 stilp·no·mel·ane
\ˌstilpnōˈmeˌlān\ noun
(-s)
Etymology: German stilpnomelan, from Greek stilpnos glistening + melan-, melas black — more at : stilbum, mullet
: a black or greenish black mineral K(Fe,Al)10Si12O30(O,OH)12 (?) occurring in foliated plates, fibrous forms, and velvety bronze-colored incrustations and consisting of a hydrous iron aluminum silicate with a little potassium (sp. gr. 2.77-2.96)
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