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Herderite and Caledonite Optical Properties


Caledonite and Herderite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent   

Refractive Index
1.587-1.642   
1.818-1.909   

Optic Character
Biaxial/+   
Not Available   

Crystal System
monoclinic   
Orthorhombic   

Birefringence
0.028-0.032   
0.091   

Clarity
Transparent   
Transparent   

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Herderite and Caledonite Optic Character

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

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

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