Home
Gemstones


Tanzanite and Amazonite Optical Properties


Amazonite and Tanzanite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Present   
WeakMichael O’Donoghue   

Dispersion
0.03   
14
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Translucent, Translucent to opaque   

Refractive Index
1.685-1.707   
1.522-1.530   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Triclinic   

Birefringence
0.006-0.018   
0.008-0.010   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Translucent   

Benefits >>
<< Physical Properties

Tanzanite and Amazonite Optic Character

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

Compare Semi Precious Gemstones

Tanzanite and Amazonite Transparency

Similar to their colors, Tanzanite and Amazonite 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, Tanzanite is Translucent, Transparent and Transparent to translucent while Tanzanite is Translucent, Transparent and Transparent to translucent in appearance.

Semi Precious

Semi Precious


Compare Semi Precious Gemstones