tetragonal
Zircon
ZrSiO4
Quick Facts
Hardness
7.5
Specific Gravity
4.6-4.7
Refractive Index
1.925-1.984
Crystal Structure
tetragonal[4/mmm]:{100}@1.0 + {101}@0.8 tetragonal
4/mmm
{100} {101}
Physical Properties
Crystal Systemtetragonal
Hardness (Mohs)7.5
Specific Gravity4.6-4.7
CleavageImperfect
FractureConchoidal
LustreAdamantine to vitreous
Optical Properties
Refractive Index1.925-1.984
Birefringence0.059
PleochroismWeak (varies with colour)
Dispersion0.039
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Open in Playground tetragonal[4/mmm]:{100}@1.0 + {101}@0.8 Related Minerals
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