×

Andesine
Andesine
☒

Dallasite
Dallasite
☒



ADD ⊕
Compare
X
Andesine
X
Dallasite

Andesine and Dallasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
colorless.
0.70
Transparent, Translucent, Transparent to translucent
1.543-1.564
Biaxial/+
Triclinic
0.007-0.011
Transparent
 
-
-
0.01
-
1.540
-
-
0.008-0.010
-

Andesine and Dallasite Optic Character

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

Similar to their colors, Andesine and Dallasite 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 while Andesine is in appearance.