Home Andradite
VIII - Nesosilicates (Garnet Group)
Crystal habit of Andradite Andradite

Name   Andradite
Chemistry   Ca3Fe3+2[SiO4]3
Hardness   6.5 - 7.5
Lustre   vitreous - greasy
Colour   brown, colourless, green, black, grey
Streak   white 
Density [g/cm3]   3.7
Crystal habit   isometric, crystals rhombic dodecahedron
Cleavage, Fracture   fracture conchoidal to splintery
other characteristics and occurrences   melanite   = black variety (Na+Ti)
topazolite = yellow
demantoid  = green
contact mineral in contact metamorphic limestone and skarn

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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