Barite crystal structure
orthorhombic

Barite

BaSO4

Quick Facts

Hardness
3.0
Specific Gravity
4.3
Refractive Index
1.636

Crystal Structure

orthorhombic[mmm]:{001}@1.0 + {210}@0.8 + {110}@0.5
orthorhombic
mmm
{001} {210} {110}

Physical Properties

Crystal Systemorthorhombic
Hardness (Mohs)3.0
Specific Gravity4.3
CleavagePerfect {001}, good {210}
FractureUneven
LustreVitreous to resinous

Optical Properties

Refractive Index1.636
Birefringence0.012
PleochroismWeak
Dispersion0.016

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orthorhombic[mmm]:{001}@1.0 + {210}@0.8 + {110}@0.5