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Rossmanite
Rossmanite

Vishnevite
Vishnevite



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Rossmanite
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Vishnevite

Rossmanite and Vishnevite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWebmineral.com, Mineralogy Database (2012)
Not Available
1.5 Refractive Index
1.624-1.6451.490-1.507
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
0.0210.002-0.012
Achroite
0 0.296
1.9 Clarity
TransparentWebmineral.com
Not Available

Rossmanite and Vishnevite Optic Character

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

Rossmanite and Vishnevite Transparency

Similar to their colors, Rossmanite 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, Rossmanite is Mineralogy Database (2012) and TransparentWebmineral.com while Rossmanite is Mineralogy Database (2012) and TransparentWebmineral.com in appearance.