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Vishnevite
Vishnevite

Cobaltite
Cobaltite



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Vishnevite
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Cobaltite

Vishnevite and Cobaltite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
Not Available
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gems
1.5 Refractive Index
1.490-1.507Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
1.8 Birefringence
0.002-0.012Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Gems

Vishnevite and Cobaltite Optic Character

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

Vishnevite and Cobaltite Transparency

Similar to their colors, Vishnevite and Cobaltite 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, Vishnevite is Not Available while Vishnevite is Not Available in appearance.