×

Inderite
Inderite

Powellite
Powellite



ADD
Compare
X
Inderite
X
Powellite

Inderite and Powellite Optical Properties

Optical Properties

Luster

Vitreous, Pearly, Greasy
Greasy, Subadamantine

Pleochroism

-
In deeply colored specimens: blue greenAnthony et al

Dispersion

-0.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.488-1.5051.974-1.984
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
-

Birefringence

0.017-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Inderite and Powellite Optic Character

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

Inderite and Powellite Transparency

Similar to their colors, Inderite 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, Inderite is while Inderite is in appearance.