Home Glaucophane
VIII - Inosilicates (Amphibole Group)		 Crystal habit of Glaucophane
 
Name   Glaucophane
Chemistry   Na2Mg3Al2[(OH,F)|Si4O11]2
Hardness   6 - 6.5
Lustre   vitreous - pearly
Colour   grey, bluish black, lavendar blue, azure blue
Streak   blue grey 
Density [g/cm3]   3.0 - 3.2
Crystal habit   monoclinic, crystals rarely
Cleavage, Fracture   [001] perfect, fracture conchoidal to splintery
other characteristics and occurrences   often fibrous aggregates,
metamorphic mineral, formed at low temperature and high pressure
   
This page in German - Diese Seite in Deutsch
 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.