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Turquoise and Amblygonite Optical Properties


Amblygonite and Turquoise Optical Properties


Optical Properties

Luster
Waxy   
Vitreous, Pearly   

Pleochroism
Weak   
weak to none   

Dispersion
None   
0.01   
26

Transparency
Translucent, Opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
1.610-1.650   
1.578-1.646   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Triclinic   
Triclinic   

Birefringence
0.040   
0.020-0.030   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Turquoise and Amblygonite Optic Character

Turquoise and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Turquoise and Amblygonite 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 Turquoise and Amblygonite 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. Amblygonite has Biaxial/+ character.

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Turquoise and Amblygonite Transparency

Similar to their colors, Turquoise and Amblygonite 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, Turquoise is Opaque and Translucent while Turquoise is Opaque and Translucent in appearance.

Semi Precious

Semi Precious


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