Home Hauyne
VIII - Tectosilicates (Sodalite Group)		 Crystal habit of Hauyne Hauyne
 
Name   Hauyne
Chemistry   (Na,Ca)8-4[(SO4)2-1|(AlSiO4)6]
Hardness   5 - 6
Lustre   vitreous - greasy
Colour   blue, green, yellow, grey, colourless
Streak   white 
Density [g/cm3]   2.4 - 2.5
Crystal habit   isometric, crystals mostly [110], twins [111]
Cleavage, Fracture   [110] distinct, fracture conchoidal to uneven
other characteristics and occurrences   mostly rounded grains, only in young undersaturated volcanic rocks
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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