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Garnet
Garnet

Phenakite
Phenakite



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Garnet
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Phenakite

Garnet and Phenakite Optical Properties

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Optical Properties

Luster

Vitreous, Adamantine
Vitreous

Pleochroism

None
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Transparent to translucent
-

Refractive Index

1.730-1.8951.650-1.695
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

-99990.016
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Garnet and Phenakite Optic Character

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

Garnet and Phenakite Transparency

Similar to their colors, Garnet and Phenakite 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, Garnet is Transparent and Transparent to translucent while Garnet is Transparent and Transparent to translucent in appearance.