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Heliotrope
Heliotrope

Anhydrite
Anhydrite



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Heliotrope
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Anhydrite

Heliotrope and Anhydrite Optical Properties

Optical Properties

Luster

Vitreous
Pearly, Greasy

Pleochroism

-
For violet varieties

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.53-1.541.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.0040.042-0.044
0 0.296
👆🏻

Clarity

-
Transparent

Heliotrope and Anhydrite Optic Character

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

Similar to their colors, Heliotrope and Anhydrite 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.