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Zinnwaldite
Zinnwaldite

Pyrope
Pyrope



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Zinnwaldite
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Pyrope

Zinnwaldite and Pyrope Optical Properties

Optical Properties

Luster

Pearly, Vitreous
Greasy, Vitreous

Pleochroism

Distinct
None

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.565-1.6251.720-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
cubic

Birefringence

0.040-0.050-9999
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Zinnwaldite and Pyrope Optic Character

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

Zinnwaldite and Pyrope Transparency

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