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Grossular and Spodumene Optical Properties


Spodumene and Grossular Optical Properties


Optical Properties

Luster
Greasy, Vitreous   
Vitreous   

Pleochroism
None   
Strong in kunzite: α-purple   

Dispersion
0.02   
18
0.02   
22

Transparency
Gemmological Tables (2004) More from other references   
Transparent   

Refractive Index
1.730-1.760   
1.657-1.681   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
monoclinic   

Birefringence
0.020   
0.014-0.018   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Gems   

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Grossular and Spodumene Optic Character

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

Similar to their colors, Grossular and Spodumene 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, Grossular is Gemmological Tables (2004) More from other references while Grossular is Gemmological Tables (2004) More from other references in appearance.

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