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Pleonast
Pleonast

Augelite
Augelite



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Pleonast
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Augelite

Pleonast and Augelite Optical Properties

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Optical Properties

Luster

-
Pearly

Pleochroism

-
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.570-1.591
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

-99990.020-0.021
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Pleonast and Augelite Optic Character

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

Pleonast and Augelite Transparency

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