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Sphalerite
Sphalerite

Augelite
Augelite



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Sphalerite
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Augelite

Sphalerite and Augelite Optical Properties

Optical Properties

Luster

Adamantine
Pearly

Pleochroism

-
-

Dispersion

0.160.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

2.368-2.3711.570-1.591
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
-

Birefringence

-99990.020-0.021
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Sphalerite and Augelite Optic Character

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

Sphalerite and Augelite Transparency

Similar to their colors, Sphalerite and Augelite 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, Sphalerite is Transparent and Translucent while Sphalerite is Transparent and Translucent in appearance.