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Diaspore
Diaspore

Anhydrite
Anhydrite



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Diaspore
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Anhydrite

Diaspore and Anhydrite Optical Properties

Optical Properties

Luster

Pearly
Pearly, Greasy

Pleochroism

Strong
For violet varieties

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.702-1.7501.570-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.0480.042-0.044
0 0.296
👆🏻

Clarity

Transparent
Transparent

Diaspore and Anhydrite Optic Character

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

Diaspore and Anhydrite Transparency

Similar to their colors, Diaspore 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, Diaspore is Transparent while Diaspore is Transparent in appearance.