CA-MOON024LB-002-094

Natural Gems Belgium Colored Stone Certification : CA-MOON024LB-002-094

IDENTIFICATION : Natural White Moonstone - light blue adularescence - 3.795 ct - pear - certified natural

Species : Natural Orthoclase (Anorthoclase)
Variety : Blue Moonstone

DESCRIPTION

Shape & Cutting Style : Pear cabochon, polished both sides
Measurements : 11.5 x 7.2 x 6.1 mm
Carat Weight : 3.795 Carat
Color : milky white to to almost colorless with pale blue to purplish blue adularescence
Transparency : Transparant
Hardness : 6.0
Birefringence : 005–0.006
Crystallography : monoclinic
Luster : Opalescent - Vitreous
Refractive index : 1.520-1.525
Specific Gravity : 2.56-2.59

COMMENTS :

No indications of heating, no indications of any other treatment

Adularescence is caused by the diffraction of light as it hits thin, alternating layers of orthoclase and albite within the gem. This produces the appearance of a floating, cloud-like, blue to white light inside the gem. A blue sheen is produced if the albite crystals are very fine. 

Personal Note From Natural Gems Belgium:

This White Moonstone - light blue adularescence moonstone gemstone is all natural, and it's cut grade is fair, symmetry is fair, polish is fair, luster is good.