Home Aenigmatite
VIII - Inosilicates (Amphibole Group)
Crystal habit of Aenigmatite

 
Name   Aenigmatite
Chemistry   Na4Fe2+10Ti2[O4|(Si2O6)6]
Hardness   5 - 6
Lustre   subadamantine
Colour   brown to black
Streak   reddish brown 
Density [g/cm3]   3.3 - 3.5
Crystal habit   triclinic, crystals prismatic, acicular, twins
Cleavage, Fracture   perfect
other characteristics and occurrences   in nepheline-bearing basalts and syenites
   

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