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Omphacite
Omphacite

Pearl
Pearl



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Omphacite
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Pearl

Omphacite and Pearl Optical Properties

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Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Weak: colorless -- very pale green -- very pale green
-

Dispersion

0.020.03
0.005 1
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Transparency

TranslucentAnthony et al
Translucent, Opaque

Refractive Index

1.662-1.7231.52-1.66
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.156
0 0.296
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Clarity

TranslucentAnthony et al
Translucent

Omphacite and Pearl Optic Character

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

Omphacite and Pearl Transparency

Similar to their colors, Omphacite and Pearl 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, Omphacite is TranslucentAnthony et al while Omphacite is TranslucentAnthony et al in appearance.