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Andradite Garnet and Brazilianite Optical Properties


Brazilianite and Andradite Garnet Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
Not Available   
Very weakWalter Schumann   

Dispersion
Not Available   
0.01   
26

Transparency
Transparent, Opaque, Transparent to opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
1.888-1.889   
1.602-1.625   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
monoclinic   

Birefringence
Not Available   
0.019-0.021   

Clarity
Transparent to opaque   
TransparentUlrich Henn and Claudio C. Milisenda   

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Andradite Garnet and Brazilianite Optic Character

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

Similar to their colors, Andradite Garnet and Brazilianite 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, Andradite Garnet is Opaque, Transparent and Transparent to opaque while Andradite Garnet is Opaque, Transparent and Transparent to opaque in appearance.

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