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Antigorite
Antigorite

Mexican fire opal
Mexican fire opal



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Antigorite
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Mexican fire opal

Antigorite and Mexican fire opal Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
-

Pleochroism

pale greenish yellow
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.530-1.575-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Translucent
-

Antigorite and Mexican fire opal Optic Character

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

Similar to their colors, Antigorite and Mexican fire opal 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.