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Yttrium Aluminium Garnet
Yttrium Aluminium Garnet

Vishnevite
Vishnevite



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Yttrium Aluminium Garnet
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Vishnevite

Yttrium Aluminium Garnet 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
Gemmological Tables (2004)
Not Available
1.5 Refractive Index
1.8331.490-1.507
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
Not Available0.002-0.012
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Yttrium Aluminium Garnet and Vishnevite Optic Character

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

Yttrium Aluminium Garnet and Vishnevite Transparency

Similar to their colors, Yttrium Aluminium Garnet 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, Yttrium Aluminium Garnet is Gemmological Tables (2004) while Yttrium Aluminium Garnet is Gemmological Tables (2004) in appearance.