×

Tavorite
Tavorite

Powellite
Powellite



ADD
Compare
X
Tavorite
X
Powellite

Tavorite and Powellite Optical Properties

Optical Properties

Luster

Vitreous
Greasy, Subadamantine

Pleochroism

Yellow-green colorlessAnthony et al
In deeply colored specimens: blue greenAnthony et al

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

11.974-1.984
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Tavorite and Powellite Optic Character

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

Tavorite and Powellite Transparency

Similar to their colors, Tavorite and Powellite 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, Tavorite is Transparent while Tavorite is Transparent in appearance.