×

Peridot
Peridot

Pyrope
Pyrope



ADD
Compare
X
Peridot
X
Pyrope

Peridot and Pyrope Optical Properties

Add ⊕

Optical Properties

Luster

Vitreous, Greasy
Greasy, Vitreous

Pleochroism

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
None

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.64-1.691.720-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
cubic

Birefringence

0.036-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Peridot and Pyrope Optic Character

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

Peridot and Pyrope Transparency

Similar to their colors, Peridot 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, Peridot is Transparent while Peridot is Transparent in appearance.