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Chondrodite
Chondrodite

Sillimanite
Sillimanite



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Chondrodite
X
Sillimanite

Chondrodite and Sillimanite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous, Subadamantine, Silky

Pleochroism

X golden yellow to orange
Colourless to pale brown to yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.589-1.6701.653-1.685
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.027-0.0320.020-0.022
0 0.296
👆🏻

Clarity

Transparent
Transparent

Chondrodite and Sillimanite Optic Character

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

Chondrodite and Sillimanite Transparency

Similar to their colors, Chondrodite and Sillimanite 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, Chondrodite is Transparent and Translucent while Chondrodite is Transparent and Translucent in appearance.