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Cordierite
Cordierite

Wardite
Wardite



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X
Cordierite
X
Wardite

Cordierite and Wardite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
Vitreous

Pleochroism

X = pale yellow
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99991.590-1.599
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

-
Transparent

Cordierite and Wardite Optic Character

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

Cordierite and Wardite Transparency

Similar to their colors, Cordierite and Wardite 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, Cordierite is while Cordierite is in appearance.