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Verdelite
Verdelite

Anhydrite
Anhydrite



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Verdelite
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Anhydrite

Verdelite and Anhydrite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

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

Verdelite and Anhydrite Optic Character

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

Verdelite and Anhydrite Transparency

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