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Norbergite
Norbergite

Pyrope
Pyrope



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Norbergite
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Pyrope

Norbergite and Pyrope Optical Properties

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Optical Properties

Luster

Vitreous
Greasy, Vitreous

Pleochroism

Pale yellow very pale yellow colorlessAnthony et al
None

Dispersion

0.020.02
0.005 1
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Transparency

Transparent
-

Refractive Index

1.563-1.5931.720-1.756
1 3.25
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Optic Character

-
-

Crystal System

-
cubic

Birefringence

-9999-9999
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Norbergite and Pyrope Optic Character

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

Norbergite and Pyrope Transparency

Similar to their colors, Norbergite and Pyrope 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, Norbergite is Transparent while Norbergite is Transparent in appearance.