Gemstones Tools

Chrysoberyl

Chrysoberyls oval, drop and trillion
(kris'-o-ber-il')

1790; lat. chysoberyllus, gr. khrysoberyllos, sansk. vaidurya

Very hard transparent yellow-green mineral used as a gemstone
Color
Yellow to greenish yellow
Family
Chrysoberyl
Chemical composition
BeAl2O4
Crystal system
Orthorhombic
Hardness (Mohs scale)
8,5
Specific gravity
3,73 ±0,03
Refractive index
1,746 - 1,755 ±0,0O5
Birefringence
0,009
Optical character
Biaxial +
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