Stilpnomelane

Stilpnomelane

Stilpnomelane is a phyllosilicate mineral of the mica group. It has the formula K(Fe2+,Mg,Fe3+)8(Si,Al)12(O,OH)27.http://www.handbookofmineralogy.org/pdfs/Stilpnomelane.PDF Handbook of Mineralogy]

Stilpnomelane occurs associated with banded iron formations. It is a metamorphic mineral associated with the blueschist and greenschist facies.

It was first described in 1827 for an occurrence in Moravia in the Czech Republic. The name is derived from the Greek "stilpnos" for shining, and "melanos" for black. [http://www.mindat.org/min-3789.html Mindat]

References


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  • Stilpnomelane — Stilp*nom e*lane, n. [Gr. stilpno s shining + me las, anos, black.] (Min.) A black or greenish black mineral occurring in foliated flates, also in velvety bronze colored incrustations. It is a hydrous silicate of iron and alumina. [1913 Webster] …   The Collaborative International Dictionary of English

  • stilpnomelane — 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 …   Useful english dictionary

  • stilpnomelane — noun A metamorphic phyllosilicate mineral of the mica group, having the chemical formula K(Fe,Mg,Fe)(Si,Al)(O,OH) …   Wiktionary

  • stilpnomelane — stilp·no·mel·ane …   English syllables

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