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Boracite
Boracite

Labradorite
Labradorite



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Boracite
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Labradorite

Boracite and Labradorite Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
Vitreous, Pearly

Pleochroism

None
-

Dispersion

-0.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.658-1.6731.554-1.573
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Triclinic

Birefringence

0.010-0.0110.008-0.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Boracite and Labradorite Optic Character

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

Boracite and Labradorite Transparency

Similar to their colors, Boracite and Labradorite 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, Boracite is Transparent while Boracite is Transparent in appearance.