Garnet crystal structure
cubic

Garnet

X3Y2(SiO4)3

Quick Facts

Hardness
6.5-7.5
Specific Gravity
3.50-4.30
Refractive Index
1.73-1.89

Crystal Structure

cubic[m3m]:{110}@1.0 + {211}@0.6
cubic
m3m
{110} {211}

Physical Properties

Crystal Systemcubic
Hardness (Mohs)6.5-7.5
Specific Gravity3.50-4.30
CleavageNone
FractureConchoidal to uneven
LustreVitreous to resinous

Optical Properties

Refractive Index1.73-1.89
PleochroismNone (isotropic)
Dispersion0.027-0.057

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cubic[m3m]:{110}@1.0 + {211}@0.6