Template:Zincite

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Zincite
Chemical composition (Zn,Mn)0
Crystal system Hexagonal
Habit Pyramidal (hemihedral); massive
Cleavage Perfect on {10-10}; Parting on {0001}
Fracture Conchoidal
Hardness 4
Optic nature Uniaxial +
Refractive index 2.013 – 2.029
Specific gravity 5.66
Lustre Sub-adamantine to resinous
Fluorescence Pale yellow (extremely rare)