Home
Gemstones


Andesine and Tanzanite Optical Properties


Tanzanite and Andesine Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
colorless.   
Present   

Dispersion
0.70   
2
0.03   
14

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

Refractive Index
1.543-1.564   
1.685-1.707   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Triclinic   
Orthorhombic   

Birefringence
0.007-0.011   
0.006-0.018   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Andesine and Tanzanite Optic Character

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

Compare Red Gemstones

Andesine and Tanzanite Transparency

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

Red Gemstones

Red Gemstones


Compare Red Gemstones