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Pearl
Pearl

Moonstone
Moonstone



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Pearl
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Moonstone

Pearl and Moonstone Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Pearly
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque
Transparent, Transparent to translucent
1.5 Refractive Index
1.52-1.661.518-1.527
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.1560.006-0.007
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Pearl and Moonstone Optic Character

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

Pearl and Moonstone Transparency

Similar to their colors, Pearl and Moonstone 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.