Home Pennine
VIII - Phyllosilicates (Mica Group)
Crystal habit of Pennine

Name   Pennine
Chemistry   (Mg,Fe2+)5Al[(OH)8|AlSi3O10]
Hardness   2 - 2.5
Lustre   vitreous - pearly
Colour   dark green
Streak   white
Density [g/cm3]   2.5 - 2.7
Crystal habit   monoclinic, crystals tabular
Cleavage, Fracture   [001] perfect
other characteristics and occurrences   hydrothermal or metamorphic formation

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