Home Acmite
VIII - Inosilicates (Pyroxene Group)
Crystal habit of Acmite

Name   Acmite
Chemistry   NaFe3+[Si2O6]
Hardness   6 - 6.5
Lustre   vitreous - resinous
Colour   reddish brown to brownish black
Streak   yellowish grey 
Density [g/cm3]   3.5
Crystal habit   monoclinic
Cleavage, Fracture   [110] distinct (87°), fracture uneven
other characteristics and occurrences   in alkali rocks and pegmatites

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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