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Demantoid
Demantoid

Pollucite
Pollucite



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Demantoid
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Pollucite

Demantoid and Pollucite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Greasy

Pleochroism

None
-

Dispersion

0.060.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.880-1.8901.517-1.525
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Demantoid and Pollucite Optic Character

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

Demantoid and Pollucite Transparency

Similar to their colors, Demantoid 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, Demantoid is while Demantoid is in appearance.