cubic
Spessartine
Mn3Al2(SiO4)3
Quick Facts
Hardness
7-7.5
Specific Gravity
4.12-4.20
Refractive Index
1.79-1.81
Crystal Structure
cubic[m3m]:{211}@1.0 + {110}@0.6 cubic
m3m
{211} {110}
Physical Properties
Crystal Systemcubic
Hardness (Mohs)7-7.5
Specific Gravity4.12-4.20
CleavageNone
FractureConchoidal to uneven
LustreVitreous to resinous
Optical Properties
Refractive Index1.79-1.81
PleochroismNone (isotropic)
Dispersion0.027
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Open in Playground cubic[m3m]:{211}@1.0 + {110}@0.6 Related Minerals
Other minerals in the cubic system