RO-TOUR025BG-002-432
Rough tourmaline - for faceting or rough gemstone jewelry - 1.950 ct - bluish green
Certificate: RO-TOUR025BG-002-432
Gem Type: Tourmaline
Weight: 1.950 Carat
Shape: Rough
Size: 14.6 x 3.7 x 3.6 mm.
Color: Bluish green (indicolite)
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
