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Ammolite and Pleonaste Optical Properties


Pleonaste and Ammolite Optical Properties


Optical Properties

Luster
Silky, Vitreous   
Not Available   

Pleochroism
None   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004)   

Refractive Index
1.520-1.670   
1.780   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.135-0.145   
Not Available   

Clarity
Not Available   
Gemmological Tables (2004)   

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<< Physical Properties

Ammolite and Pleonaste Optic Character

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

Similar to their colors, Ammolite and Pleonaste 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, Ammolite is Not Available while Ammolite is Not Available in appearance.

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