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Agate Opal and Tanzanite Optical Properties


Tanzanite and Agate Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Present   

Dispersion
None   
0.03   
14

Transparency
Translucent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.37-1.52   
1.685-1.707   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.006-0.018   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Agate Opal and Tanzanite Optic Character

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

Similar to their colors, Agate Opal and Tanzanite 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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