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Augite
Augite

Crocoite
Crocoite



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Augite
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Crocoite

Augite and Crocoite Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Adamantine

Pleochroism

Pale green
Distinctly trichroic

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.671-1.7742.31-2.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Augite and Crocoite Optic Character

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

Similar to their colors, Augite and Crocoite 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.