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Nuummite
Nuummite

Pollucite
Pollucite



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Nuummite
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Pollucite

Nuummite and Pollucite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.635-1.6631.517-1.525
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

0.0170-0.230-9999
0 0.296
👆🏻

Clarity

-
Transparent

Nuummite and Pollucite Optic Character

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

Nuummite and Pollucite Transparency

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