FA-APAT024GB-115-001

Natural Gems Belgium Colored Stone Certification FA-APAT024GB-115-001

IDENTIFICATION : Natural greenish blue Apatite - 1.93 ct - octagon - unheated

Species : Natural Phosphate mineral
Variety : Apatite

DESCRIPTION

Shape & Cutting Style : Octagon, Mixed Cut
Measurements : 8.2 x 5.0 x 4.6 mm
Carat Weight : 1.93 Carat
Color : Greenish Blue
Clarity : comparable to I3 
Transparency : transparent

Birefringence : 0.001-0.013
Crystallography : Hexagonal
Dispersion : 0.013
Luster : Vitreous
Inclusions : 
Hardness : 5
Refractive index : 1.598-1.667 checked = in margin
Specific gravity : 3.10-3.35 checked = in margin

COMMENTS :

No indications of heating, no indications of any other treatment

Personal Note From Natural Gems Belgium:

This natural apatite is nice of color, the inclusions might give the impression the gemstone is chipped but is caused by hollow growth tubes. Its cut grade is good, symmetry is good, polish is good, fluoresce violet-blue to sky blue