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Annabergite and Andesine Optical Properties


Andesine and Annabergite Optical Properties


Optical Properties

Luster
Subadamantine, Pearly   
Vitreous   

Pleochroism
Not Available   
colorless.   

Dispersion
Not Available   
0.70   
2

Transparency
Not Available   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.622   
1.543-1.564   

Optic Character
Not Available   
Biaxial/+   

Crystal System
monoclinic   
Triclinic   

Birefringence
0.065   
0.007-0.011   

Clarity
Not Available   
Transparent   

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Annabergite and Andesine Optic Character

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

Similar to their colors, Annabergite and Andesine 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, Annabergite is Not Available while Annabergite is Not Available in appearance.

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