Difference between revisions of "Template:Spessartite"
From The Gemology Project
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| Optic nature || isotrope | | Optic nature || isotrope | ||
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− | | | + | | Refractive index || 1.795-1.815 |
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| Birefringence || none | | Birefringence || none |
Revision as of 11:56, 1 November 2006
Spessartite Garnet | |
---|---|
Chemical composition | Mn3Al2(SiO4)3
Manganese Aluminium Silicate |
Crystal system | Cubic |
Habit | dodecahedra |
Cleavage | none |
Hardness | 7 |
Optic nature | isotrope |
Refractive index | 1.795-1.815 |
Birefringence | none |
Specific gravity | 4.12-4.20 |
Lustre | vitreous |