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VIII - Sorosilicates
Crystal habit of Melilite Melilite

Name   Melilite
Chemistry   (Ca,Na)2(Mg,Al,Fe)[(Al,Si)2O7]
Hardness   5 - 5.5
Lustre   vitreous - greasy
Colour   white, yellowish white, brown, grey, greenish grey
Streak   white 
Density [g/cm3]   2.9 - 3.0
Crystal habit   tetragonal, crystals short, prismatic or tabular
Cleavage, Fracture   [001] distinct, [100] indistinct
other characteristics and occurrences   in igneous rocks poor in silica and alkali

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