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Heliotrope
Heliotrope

Antigorite
Antigorite



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Heliotrope
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Antigorite

Heliotrope and Antigorite Optical Properties

Optical Properties

Luster

Vitreous
Waxy, Silky, Resinous, Greasy

Pleochroism

-
pale greenish yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.53-1.541.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.004-9999
0 0.296
👆🏻

Clarity

-
Translucent

Heliotrope and Antigorite Optic Character

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

Heliotrope and Antigorite Transparency

Similar to their colors, Heliotrope 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, Heliotrope is while Heliotrope is in appearance.