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Anhydrite
Anhydrite

Emerald
Emerald



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Anhydrite
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Emerald

Anhydrite and Emerald Optical Properties

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Optical Properties

Luster

Pearly, Greasy
Vitreous

Pleochroism

For violet varieties
Strong dichroism: yellow green Lazzarelli

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.570-1.6141.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.042-0.0440.0040-0.0070
0 0.296
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Clarity

Transparent
-

Anhydrite and Emerald Optic Character

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

Similar to their colors, Anhydrite and Emerald 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.