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Augelite
Augelite

Hibonite
Hibonite



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Augelite
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Hibonite

Augelite and Hibonite Optical Properties

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Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
O = brownish gray; E = gray

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.570-1.5911.79-1.807
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

0.020-0.021-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Augelite and Hibonite Optic Character

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

Augelite and Hibonite Transparency

Similar to their colors, Augelite and Hibonite 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, Augelite is while Augelite is in appearance.