FA-PREH024YG-042-026
Natural Gems Belgium Colored Stone Certification FA-PREH024YG-042-026
IDENTIFICATION : Natural yellowish green Prehnite (epidote needles inclusions )- 11.38 ct - octagon - unheated
Species : Natural inosilicate
Variety : Prehnite
DESCRIPTION
Shape & Cutting Style : Octagon, Mixed Cut
Measurements : 16.0 x 13.8 x 6.6 mm
Carat Weight : 11.38 Carat
Color : yellowish green
Clarity : comparable to I3
Transparency : translucent
Birefringence : 0.021-0.033
Crystallography : Orthorhombic
Dispersion : weak
Luster : Vitreous
Hardness : 6-6.5
Refractive index : 1.611-1.665 checked = in margin
Specific gravity : 2.80-3.00 checked = in margin
COMMENTS :
No indications of heating, no indications of any other treatment
The gemstone is small chipped, not influencing quality of the stone, not visible without magnification
Personal Note From Natural Gems Belgium:
This 11.38 ct Natural prehnite, has a yellowish green color and an octagon shape. It has not been treated or heated. Despite a very small chip on the down side, which is only visible under magnification, this gemstone maintains its value and appearance. Its cut, polish, and luster are all considered good, while its symmetry is rated as good. Additionally, it is included with black Epidote needles.
