Home Gahnite
IV - Oxides (Spinel Group)
Crystal habit of Gahnite Gahnite

Name   Gahnite
Chemistry   ZnAl2O4
Hardness   8
Lustre   vitreous
Colour   dark green, bluish green
Streak   grey 
Density [g/cm3]   4.3
Crystal habit   isometric, crystals [111], rarely [100],[110]
Cleavage, Fracture   [111] distinct, fracture conchoidal
other characteristics and occurrences   granular, metamorphic mineral, in contact metamorphic and pegmatitic rocks, with sphalerite (ZnS) and galena (PbS)

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.