Home
Gemstones


Amblygonite and Amethyst Optical Properties


Amethyst and Amblygonite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous   

Pleochroism
weak to none   
None   

Dispersion
0.01   
26
0.01   
27

Transparency
Gemmological Tables (2004) More from other references   
Transparent, Transparent to translucent   

Refractive Index
1.578-1.646   
1.544-1.553   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Triclinic   
Trigonal   

Birefringence
0.020-0.030   
0.009   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits >>
<< Physical Properties

Amblygonite and Amethyst Optic Character

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

Compare Green Gemstones

Amblygonite and Amethyst Transparency

Similar to their colors, Amblygonite and Amethyst 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 Gemmological Tables (2004) More from other references while Amblygonite is Gemmological Tables (2004) More from other references in appearance.

Green Gemstones

Green Gemstones


Compare Green Gemstones