Gemstones Tools

Aquamarine

Aquamarine drop shape
(ak'-wa-ma-ren)

16th c.; lat. aqua marina "sea water"

Transparent gemstone of the beryl family with a blue to bluish-green color
Color
Very light to medium dark blue to greenish blue
Family
Beryl
Chemical composition
Be3Al2(SiO3)6
Crystal system
Hexagonal
Hardness (Mohs scale)
7,5 - 8
Specific gravity
2,76 ±0,05
Refractive index
1,577 - 1,583 ±0,017
Birefringence
0,005 to 0,009
Optical character
Uniaxial -
Chanthaburi

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Jaipur

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