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Agate Opal and Gahnospinel Optical Properties


Gahnospinel and Agate Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
AbsentWalter Schumann   

Dispersion
None   
Not Available   

Transparency
Translucent   
Gemmological Tables (2004)   

Refractive Index
1.37-1.52   
1.735-1.790   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Isometric   

Birefringence
Not Available   
Not Available   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Agate Opal and Gahnospinel Optic Character

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

Similar to their colors, Agate Opal and Gahnospinel 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, Agate Opal is Translucent while Agate Opal is Translucent in appearance.

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