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Pollucite
Pollucite

Vishnevite
Vishnevite



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Pollucite
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Vishnevite

Pollucite and Vishnevite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Pearly
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.517-1.5251.490-1.507
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Hexagonal
1.8 Birefringence
Not Available0.002-0.012
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Pollucite and Vishnevite Optic Character

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

Pollucite and Vishnevite Transparency

Similar to their colors, Pollucite and Vishnevite 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, Pollucite is Translucent and Transparent while Pollucite is Translucent and Transparent in appearance.