Gemstones Tools

Citrine

Various cuts citrine
(si'-trin')

17th c.; lat. citrus

A yellow to yellow-brown variety of crystalline quartz
Color
Light to dark yellow
Family
Quartz
Chemical composition
SiO2
Crystal system
Hexagonal
Hardness (Mohs scale)
7
Specific gravity
2,66 ±0,01
Refractive index
1,544 - 1,553
Birefringence
0,009
Optical character
Uniaxial +
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