Labradorite and Sussexite Optical Properties

Labradorite

Sussexite

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Fibrous, Pearly

1.2 Pleochroism

From the Congo

Not Available

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Transparent

1.5 Refractive Index

1.554-1.573Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.008-0.010Not Available

0 0.296

1.9 Clarity

Transparent

Labradorite and Sussexite Optic Character

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

Similar to their colors, Labradorite and Sussexite 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.