Template:Spessartite

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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