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Anhydrite
Anhydrite

Verdelite
Verdelite



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Anhydrite
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Verdelite

Anhydrite and Verdelite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly, Greasy
For violet varieties
0.01
Transparent
1.570-1.614
-
Orthorhombic
0.042-0.044
Transparent
 
-
Strong: dark green yellow
0.02
Transparent, Translucent
1.614-1.666
-
-
0.014-0.040
Transparent

Anhydrite and Verdelite Optic Character

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

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