CA-MOON024LB-002-127

Natural Gems Belgium Certification : CA-MOON024LB-002-127

IDENTIFICATION : Natural Moonstone - pale blue adularescence - 3.374 ct - oval cabochon

Species : Natural Orthoclase (Anorthoclase)
Variety : blue Moonstone

DESCRIPTION:

Shape & Cutting Style : Oval cabochon, polished both sides
Carat Weight :  3.374 Carat
Measurements : 10.9 x 8.3 x 4.8 mm
Color : Clear surrounded by milky white with pale 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
inequalities in flat side

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 Clear surrounded by milky white with pale blue adularescence moonstone is all natural, and it's cut grade is fair, symmetry is fair, polish is fair , luster is  good.