Home Stilbite
VIII - Tectosilicates (Zeolite Group)		 Crystal habit of Stilbite Stilbite
 
Name   Stilbite
Chemistry   Ca[Al2Si7O18]·7H2O
Hardness   3.5 - 4
Lustre   pearly - vitreous
Colour   colourless, white, grey, yellowish, brown, transparent, translucent
Streak   white
Density [g/cm3]   2.1 - 2.2
Crystal habit   monoclinic, crystals often wheat sheaf like bundles, prismatic, radiating
Cleavage, Fracture   [010] perfect, fracture uneven
other characteristics and occurrences   in vesicles of basalts, in granitic druses and fissures
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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