×

Poudretteite
Poudretteite

Gedrite
Gedrite



ADD
Compare
X
Poudretteite
X
Gedrite

Poudretteite and Gedrite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Colorless
Weak to moderate

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.511-1.5321.625-1.718
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.021-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Poudretteite and Gedrite Optic Character

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

Poudretteite and Gedrite Transparency

Similar to their colors, Poudretteite and Gedrite 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, Poudretteite is while Poudretteite is in appearance.