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Idocrase
Idocrase

Anhydrite
Anhydrite



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Idocrase
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Anhydrite

Idocrase and Anhydrite Optical Properties

Optical Properties

Luster

-
Pearly, Greasy

Pleochroism

-
For violet varieties

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.67-1.761.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Orthorhombic

Birefringence

-99990.042-0.044
0 0.296
👆🏻

Clarity

-
Transparent

Idocrase and Anhydrite Optic Character

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

Idocrase and Anhydrite Transparency

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