Home Lazurite
VIII - Tectosilicates		 Crystal habit of Lazurite
 
Name   Lazurite
(Lasurite, Lapis Lazuli)
Chemistry   (Na,Ca)8[(SO4),Cl2|(AlSiO4)6]
Hardness   5 - 6
Lustre   greasy
Colour   blue, azure blue, violet blue
Streak   light blue 
Density [g/cm3]   2.4
Crystal habit   isometric, crystals rarely
Cleavage, Fracture   fracture uneven
other characteristics and occurrences   massive, fine grained aggregates, contact mineral with marble
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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