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Moonstone
Moonstone

Apatite
Apatite



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Moonstone
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Apatite

Moonstone and Apatite Optical Properties

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Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
Blue stones – strong

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Transparent to translucent
-

Refractive Index

1.518-1.5271.628-1.651
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.006-0.0070.002-0.008
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Moonstone and Apatite Optic Character

Moonstone and Apatite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Moonstone and Apatite 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 Apatite 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.

Moonstone and Apatite Transparency

Similar to their colors, Moonstone and Apatite 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.