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Knebelite Gallery

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Multiple photos availableFayalite-Tephroite Series (Var: Knebelite) : from (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4

Dzhimidon Pb-Zn deposit, Sadon ore district, North Ossetia Republic, Northern Caucasus Region, Russia

Brownish-grey rounded grains of knebelite (in the center and upper left parts of the specimen) in poly-metallic sulphide ore. Associating minerals are dark-brown FeMn-pyroxene forming rims around knebelite and sulphides - pyrrhotite, pyrite, galena, sphalerite, chalcopyrite and arsenopyrite. Knebelite was described in the article - Groznova e.a. ...
 © Pavel M. KartashovPhoto ID: 208124    View Count: 156

Fayalite-Tephroite Series (Var: Knebelite) : from (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4

Long Mountain, Stark, Coos Co., New Hampshire, USA

Manganoan fayalite, about 4 cm across. Harvard Mineralogical Museum specimen. Field collected by W. E. Richmond ca. 1940. P. Cristofono photo.
 © 2009 Peter CristofonoPhoto ID: 223901    View Count: 57
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