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Celestine
Celestine

Cordierite
Cordierite



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X
Celestine
X
Cordierite

Celestine and Cordierite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Greasy, Vitreous

Pleochroism

Weakly trichroiC
X = pale yellow

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.619-1.635-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.004-0.012-9999
0 0.296
👆🏻

Clarity

-
-

Celestine and Cordierite Optic Character

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

Celestine and Cordierite Transparency

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