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Antigorite
Antigorite

Idocrase
Idocrase



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Antigorite
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Idocrase

Antigorite and Idocrase Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
-

Pleochroism

pale greenish yellow
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.530-1.5751.67-1.76
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Translucent
-

Antigorite and Idocrase Optic Character

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

Similar to their colors, Antigorite and Idocrase 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.