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Agate
Agate

Augelite
Augelite



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Agate
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Augelite

Agate and Augelite Optical Properties

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Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Absent
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.530-1.5431.570-1.591
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.0040.020-0.021
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Agate and Augelite Optic Character

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

Agate and Augelite Transparency

Similar to their colors, Agate 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, Agate is Translucent while Agate is Translucent in appearance.