Labradorite and Augite Optical Properties

Labradorite

Augite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Vitreous, Resinous

1.2 Pleochroism

From the Congo

Pale green

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Transparent, Translucent

1.5 Refractive Index

1.554-1.5731.671-1.774

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

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

1.8 Birefringence

0.008-0.010Not Available

0 0.296

1.9 Clarity

Transparent

Labradorite and Augite Optic Character

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

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Labradorite and Augite Transparency

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