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Andesine and Jasper Optical Properties


Jasper and Andesine Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
colorless.   
AbsentWalter Schumann   

Dispersion
0.70   
2
None   

Transparency
Transparent, Translucent, Transparent to translucent   
Opaque   

Refractive Index
1.543-1.564   
1.540   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Triclinic   
Trigonal   

Birefringence
0.007-0.011   
Not Available   

Clarity
Transparent   
OpaqueHerve Nicolas Lazzarelli   

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Andesine and Jasper Optic Character

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

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Andesine and Jasper Transparency

Similar to their colors, Andesine and Jasper 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, Andesine is Translucent, Transparent and Transparent to translucent while Andesine is Translucent, Transparent and Transparent to translucent in appearance.

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