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Augite
Augite

Oligoclase
Oligoclase



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Augite
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Oligoclase

Augite and Oligoclase Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

Pale green
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.671-1.7741.538-1.550
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
-

Birefringence

-99990.010
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Augite and Oligoclase Optic Character

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

Augite and Oligoclase Transparency

Similar to their colors, Augite and Oligoclase 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, Augite is Transparent and Translucent while Augite is Transparent and Translucent in appearance.