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Piemontite
Piemontite

Pyrope
Pyrope



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Piemontite
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Pyrope

Piemontite and Pyrope Optical Properties

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Optical Properties

Luster

Vitreous
Greasy, Vitreous

Pleochroism

visible
None

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.725-1.7561.720-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
cubic

Birefringence

0.025-0.076-9999
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Piemontite and Pyrope Optic Character

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

Piemontite and Pyrope Transparency

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