×

Prasiolite
Prasiolite

Cordierite
Cordierite



ADD
Compare
X
Prasiolite
X
Cordierite

Prasiolite and Cordierite Optical Properties

Optical Properties

Luster

Vitreous
Greasy, Vitreous

Pleochroism

Very weak: light green pale greenWalter Schumann
X = pale yellow

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.544-1.553-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.009-9999
0 0.296
👆🏻

Clarity

Transparent
-

Prasiolite and Cordierite Optic Character

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

Prasiolite and Cordierite Transparency

Similar to their colors, Prasiolite and Cordierite 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, Prasiolite is Transparent and Translucent while Prasiolite is Transparent and Translucent in appearance.