FA-TOUR026GR-003-317

Natural Tourmaline - Green - 2 mm - 0.029 ct - round - excellent - unheated

Natural Gems Belgium Colored Stone Certification  FA-TOUR026GR-003-317

IDENTIFICATION

Species : Natural Tourmaline
Variety : Green Tourmaline

DESCRIPTION

Shape & Cutting Style : Round, brilliant Cut
Measurements : 2 mm diameter
Carat Weight : 0.029 carat
Color : deep olive green
Clarity : comparable with VS
Transparency : Transparent

Birefringence : 0.020
Crystallography : Hexagonal (trigonal)
Dispersion : 0.017
Luster : Vitreous
Hardness : 7
Refractive index : 1.603-1.820
Specific gravity : 3.39-3.41

COMMENTS :

No indications of heating, no indications of any other treatment;
Green Tourmaline is often referred to as verdelite

Personal Note From Natural Gems Belgium: