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Pollucite
Pollucite

Almandine
Almandine



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Pollucite
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Almandine

Pollucite and Almandine Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.517-1.5251.770-1.820
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
cubic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Pollucite and Almandine Optic Character

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

Pollucite and Almandine Transparency

Similar to their colors, Pollucite and Almandine 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, Pollucite is Transparent and Translucent while Pollucite is Transparent and Translucent in appearance.