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Anhydrite
Anhydrite

Unakite
Unakite



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Anhydrite
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Unakite

Anhydrite and Unakite Optical Properties

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1 Optical Properties
1.1 Luster
Pearly, Greasy
Not Available
1.2 Pleochroism
For violet varieties
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemstones of the world (2001)
1.5 Refractive Index
1.570-1.6141.525
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.042-0.044Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemstones of the world (2001)

Anhydrite and Unakite Optic Character

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

Similar to their colors, Anhydrite and Unakite 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.