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Anhydrite
Anhydrite

Wardite
Wardite



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Anhydrite
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Wardite

Anhydrite and Wardite Optical Properties

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Optical Properties

Luster

Pearly, Greasy
Vitreous

Pleochroism

For violet varieties
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
Transparent

Refractive Index

1.570-1.6141.590-1.599
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.042-0.0440.009
0 0.296
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Clarity

Transparent
Transparent

Anhydrite and Wardite Optic Character

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

Anhydrite and Wardite Transparency

Similar to their colors, Anhydrite and Wardite 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, Anhydrite is Transparent while Anhydrite is Transparent in appearance.