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Antigorite
Antigorite

Augelite
Augelite



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Antigorite
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Augelite

Antigorite and Augelite Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
Pearly

Pleochroism

pale greenish yellow
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.530-1.5751.570-1.591
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.020-0.021
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Antigorite and Augelite Optic Character

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

Antigorite and Augelite Transparency

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