CA-MOON024LB-002-130

Natural Gems Belgium Certification : CA-MOON024LB-002-130

IDENTIFICATION : Natural Moonstone - orangey yellow and pale blue adularescence - 3.923 ct - oval

Species : Natural Orthoclase (Anorthoclase)
Variety : blue Moonstone

DESCRIPTION:

Shape & Cutting Style : Oval cabochon, polished both sides
Carat Weight :  3.923 Carat
Measurements : 11.1 x 8.0 x 5.4 mm
Color : milky white with orangey yellow and 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
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 milky white with orangey yellow and pale blue adularescence moonstone is all natural, and it's cut grade is good, symmetry is fair to good, polish is fair to good , luster is  good.