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Selenite and Herderite Optical Properties


Herderite and Selenite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent   

Refractive Index
Not Available   
1.587-1.642   

Optic Character
Not Available   
Biaxial/+   

Crystal System
monoclinic   
monoclinic   

Birefringence
Not Available   
0.028-0.032   

Clarity
Transparent   
Transparent   

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Selenite and Herderite Optic Character

Selenite and Herderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Selenite and Herderite 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 Selenite and Herderite 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. Herderite has Biaxial/+ character.

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Selenite and Herderite Transparency

Similar to their colors, Selenite and Herderite 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, Selenite is Transparent while Selenite is Transparent in appearance.

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