Template:Amazonite

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Amazonite
Chemical composition Microcline feldspar
Crystal system Triclinic
Habit Massive
Hardness 6-6.5
Optic nature Biaxial -
Refractive index 1.522-1.530
Birefringence 0.008-0.010
Dispersion Low
Specific gravity 2.56
Lustre Vitreous