cubic
Halite
NaCl
Quick Facts
Hardness
2.5
Specific Gravity
2.17
Refractive Index
1.544
Crystal Structure
cubic[m3m]:{100}@1.0 cubic
m3m
{100}
Physical Properties
Crystal Systemcubic
Hardness (Mohs)2.5
Specific Gravity2.17
CleavagePerfect {100} (three directions at 90 degrees)
FractureConchoidal (rarely seen)
LustreVitreous
Optical Properties
Refractive Index1.544
PleochroismNone (isotropic)
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