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Nuummite
Nuummite

Taaffeite
Taaffeite



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Nuummite
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Taaffeite

Nuummite and Taaffeite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.635-1.6631.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

0.0170-0.2300.055
0 0.296
👆🏻

Clarity

-
-

Nuummite and Taaffeite Optic Character

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

Similar to their colors, Nuummite and Taaffeite 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.