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Pearl
Pearl

Antigorite
Antigorite



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Pearl
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Antigorite

Pearl and Antigorite Optical Properties

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Optical Properties

Luster

Pearly
Waxy, Silky, Resinous, Greasy

Pleochroism

-
pale greenish yellow

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

Translucent, Opaque
Translucent

Refractive Index

1.52-1.661.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Birefringence

0.156-9999
0 0.296
👆🏻

Clarity

Translucent
Translucent

Pearl and Antigorite Optic Character

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

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