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Ulexite
Ulexite

Pollucite
Pollucite



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Ulexite
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Pollucite

Ulexite and Pollucite Optical Properties

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Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
-

Dispersion

0.060.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.491-1.5201.517-1.525
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

0.029-9999
0 0.296
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Clarity

Transparent
Transparent

Ulexite and Pollucite Optic Character

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

Ulexite and Pollucite Transparency

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