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Polyhalite and Agate Opal Optical Properties


Agate Opal and Polyhalite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Not Available   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Not Available   
Translucent   

Refractive Index
1.546-1.548   
1.37-1.52   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Not Available   

Birefringence
0.021   
Not Available   

Clarity
Not Available   
Translucent   

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<< Physical Properties

Polyhalite and Agate Opal Optic Character

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

Similar to their colors, Polyhalite and Agate Opal 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, Polyhalite is Not Available while Polyhalite is Not Available in appearance.

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