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Agate Opal and Catapleiite Optical Properties


Catapleiite and Agate Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)   

Refractive Index
1.37-1.52   
1.590-1.629   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)   

Birefringence
Not Available   
0.039   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Agate Opal and Catapleiite Optic Character

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

Similar to their colors, Agate Opal and Catapleiite 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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