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Amblygonite and Ruby Optical Properties


Ruby and Amblygonite Optical Properties


Optical Properties

Luster
Vitreous, Pearly  
Vitreous, Adamantine  

Pleochroism
weak to none  
Strong: purplish-red  

Dispersion
0.01  
99+
0.02  
99+

Transparency
-  
Transparent, Translucent, Transparent to opaque  

Refractive Index
1.578-1.646  
1.762-1.778  

Optic Character
Biaxial/+  
-  

Crystal System
Triclinic  
Trigonal  

Birefringence
0.020-0.030  
0.008  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
Transparent  

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Amblygonite and Ruby Optic Character

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

Similar to their colors, Amblygonite and Ruby 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, Amblygonite is while Amblygonite is in appearance.

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