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Anhydrite
Anhydrite

Nephrite
Nephrite



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Anhydrite
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Nephrite

Anhydrite and Nephrite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous, Greasy
1.2 Pleochroism
For violet varieties
None
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.570-1.6141.600-1.627
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.042-0.0440.027
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Anhydrite and Nephrite Optic Character

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

Similar to their colors, Anhydrite and Nephrite 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.