Template:Spessartite
From The Gemology Project
Revision as of 00:52, 3 October 2006 by Africanuck (talk | contribs)
Spessartite Garnet | |
---|---|
Chemical composition | L3M2(SiO4)3
Isomorphous series |
Crystal system | Cubic |
Habit | dodecahedra |
Cleavage | none |
Hardness | 6.5-7.5 |
Optic nature | isotrope |
Refaction index | 1.74-1.89 |
Birefringence | none |
Specific gravity | 3.60-4.20 |
Lustre | vitreous to sub-adamantine |