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Anhydrite
Anhydrite

Afghanite
Afghanite



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Anhydrite
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Afghanite

Anhydrite and Afghanite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous
1.2 Pleochroism
For violet varieties
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Gemstones (2009)
1.5 Refractive Index
1.570-1.6141.523
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.042-0.0440.006
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Anhydrite and Afghanite Optic Character

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

Similar to their colors, Anhydrite and Afghanite 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.