Template:Zircon

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Zircon
Chemical composition Zirconium silicate
Crystal system Tetragonal
Habit edit me
Cleavage edit me
Fracture edit me
Hardness 7.5
Optic nature edit me
Refractive index 1.93 - 1.98
Birefringence 0.059
Dispersion edit me
Specific gravity 4.69
Lustre Resinous to Adamantine
Pleochroism edit me