Home Gadolinite
VIII - Nesosilicates		 Crystal habit of Gadolinite Gadolinite
 
Name   Gadolinite
Chemistry   Y2FeBe[O|SiO4]2
Hardness   6.5 - 7
Lustre   vitreous - greasy
Colour   brown, green, green black, light green, black
Streak   greenish grey 
Density [g/cm3]   4.3 - 4.5
Crystal habit   monoclinic, crystals rarely prismatic, primarily crudely formed
Cleavage, Fracture   fracture conchoidal to splintery
other characteristics and occurrences   in pegmatitic veins rich in alkali metals and rare earth elements
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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