×

Parisite
Parisite

Andalusite
Andalusite



ADD
Compare
X
Parisite
X
Andalusite

Parisite and Andalusite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
strongly trichroic

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.671-1.7711.627-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.099-0.1000.009-0.010
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Parisite and Andalusite Optic Character

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

Parisite and Andalusite Transparency

Similar to their colors, Parisite and Andalusite 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, Parisite is while Parisite is in appearance.