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Anhydrite
Anhydrite

Verdite
Verdite



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Anhydrite
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Verdite

Anhydrite and Verdite Optical Properties

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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
 
Vitreous, Silky
Extreme
0.03
Translucent
1.580
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
-9999
Translucent

Anhydrite and Verdite Optic Character

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

Similar to their colors, Anhydrite and Verdite 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.