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Charoite
Charoite

Vishnevite
Vishnevite



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Charoite
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Vishnevite

Charoite and Vishnevite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Fibrous, Chatoyant
Vitreous, Pearly
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.545-1.5601.490-1.507
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Hexagonal
1.8 Birefringence
0.0090.002-0.012
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Charoite and Vishnevite Optic Character

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

Charoite and Vishnevite Transparency

Similar to their colors, Charoite 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, Charoite is Translucent while Charoite is Translucent in appearance.