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VIII - Cyclosilicates
Crystal habit of Axinite Axinite

Name   Axinite
Chemistry   Ca2(Fe,Mn)Al2[OH|BO3|Si4O12]
Hardness   6.5 - 7
Lustre   vitreous
Colour   colourless and in all colours, zonal coloured, transparent, translucent
Streak   white 
Density [g/cm3]   3.3
Crystal habit   trigonal, crystals columnar, striated
Cleavage, Fracture   [010] distinct, fracture conchoidal
other characteristics and occurrences   ferroaxinite     = (Fe), lilac brown to black
magnesiumaxinite = (Mg), pale blue to grey
manganaxinite    = (Mn), yellow-orange
tinzenite        = (Fe+Mn), yellow
in cavities of granites, in limestone rich rocks in the contact area, in crystalline schists

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