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Cordierite and Selenite Optical Properties


Selenite and Cordierite Optical Properties


Optical Properties

Luster
Greasy, Vitreous   
Vitreous   

Pleochroism
X = pale yellow   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent   

Refractive Index
Not Available   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
Not Available   
Not Available   

Clarity
Not Available   
Transparent   

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Cordierite and Selenite Optic Character

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

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Cordierite and Selenite Transparency

Similar to their colors, Cordierite and Selenite 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 Not Available while Cordierite is Not Available in appearance.

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