Home Sodalite
VIII - Tectosilicates		 Crystal habit of Sodalite Sodalite
 
Name   Sodalite
Chemistry   Na8[Cl2|(AlSiO4)6]
Hardness   5 - 6
Lustre   vitreous - greasy
Colour   azure blue, white, pink, grey, green
Streak   white
Density [g/cm3]   2.1 - 2.3
Crystal habit   isometric, crystals dodecahedral, rarely
Cleavage, Fracture   [110] distinct, fracture conchoidal to uneven
other characteristics and occurrences   massive, in silicon untersaturated volcanic rocks (nepheline-syenite, phonolite)
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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