×

Dravite
Dravite

Cacoxenite
Cacoxenite



ADD
Compare
X
Dravite
X
Cacoxenite

Dravite and Cacoxenite Optical Properties

Optical Properties

Luster

Vitreous
Silky

Pleochroism

Very strong: pale yellow colorless
visible: O = Pale yellow E = Canary yellow to yellow orange

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.614-1.6661.575-1.585
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Hexagonal

Birefringence

0.014-0.032-9999
0 0.296
👆🏻

Clarity

Transparent
-

Dravite and Cacoxenite Optic Character

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

Dravite and Cacoxenite Transparency

Similar to their colors, Dravite and Cacoxenite 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, Dravite is Transparent while Dravite is Transparent in appearance.