Rough tourmaline - for faceting or rough gemstone jewelry - 1.222 ct - neon green

Certificate: RO-TOUR025BG-002-436

Gem Type: Tourmaline

Weight: 1.222 Carat

Shape: Rough

Size: 10.4 x 3.5 x 3.0 mm.

Color: neon green (slight bluish)

Clarity: Transparent

Luster: N/A

Treatment: Unheated Untreated

Birefringence : 0.020
Crystallography : Hexagonal (trigonal)
Dispersion : 0.017
Luster : Vitreous
Hardness : 7
Refractive index : 1.62 to 1.64
Specific gravity : 3.02 to 3.26

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