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Pollucite
Pollucite

Blue spinel
Blue spinel



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Pollucite
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Blue spinel

Pollucite and Blue spinel Optical Properties

Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

-
-

Dispersion

0.01-
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.517-1.525-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Pollucite and Blue spinel Optic Character

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

Similar to their colors, Pollucite and Blue spinel 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.