CA-MOON024LB-002-104
Natural Gems Belgium Certification : CA-MOON024LB-002-104
IDENTIFICATION : Natural Moonstone - blue adularescence - 4.115 ct - oval - certified natural
Species : Natural Orthoclase (Anorthoclase)
Variety : Blue Moonstone
DESCRIPTION
Shape & Cutting Style : Oval cabochon, polished both sides
Carat Weight : 4.115 Carat
Measurements : 11.1 x 8.2 x 5.5 mm
Color : milky white to clear with blue and light 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
small chipped on 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 milky white to clear with blue and light blue adularescence moonstone gemstone is all natural, and it's cut grade is good, symmetry is good, polish is good, luster is good.
