Template:Maxixe

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Maxixe beryl
Chemical composition Beryllium Aluminium Silicate Be3Al2(SiO3)6
Crystal system Hexagonal
Habit prismatic
Cleavage poor, basal
Fracture conchoidal to uneven
Hardness 7.5
Optic nature uniaxial -
Refractive index 1.579 - 1.592
Birefringence 0.007
Dispersion low, 0.0014
Specific gravity 2.69 - 2.8
Lustre Vitreous
Pleochroism distinct