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Moonstone
Moonstone

Anthophyllite
Anthophyllite



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Moonstone
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Anthophyllite

Moonstone and Anthophyllite Optical Properties

Optical Properties

Luster

Pearly
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Transparent to translucent
Transparent

Refractive Index

1.518-1.5271.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.006-0.007-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Moonstone and Anthophyllite Optic Character

Moonstone and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Moonstone and Anthophyllite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Moonstone and Anthophyllite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Anthophyllite has Biaxial/+ character.

Moonstone and Anthophyllite Transparency

Similar to their colors, Moonstone and Anthophyllite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.