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Vishnevite
Vishnevite

Phosphosiderite
Phosphosiderite



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Vishnevite
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Phosphosiderite

Vishnevite and Phosphosiderite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Not Available
Pale rose-red carmine-red colorlessAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.490-1.5071.692-1.739
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.002-0.0120.240
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Vishnevite and Phosphosiderite Optic Character

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

Similar to their colors, Vishnevite and Phosphosiderite 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.