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Antigorite
Antigorite

Steatite
Steatite



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Antigorite
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Steatite

Antigorite and Steatite Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
-

Pleochroism

pale greenish yellow
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.530-1.5751.539-1.596
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.046-0.050
0 0.296
👆🏻

Clarity

Translucent
OpaqueUlrich Henn and Claudio C. Milisenda

Antigorite and Steatite Optic Character

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

Similar to their colors, Antigorite and Steatite 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.