Labradorite and Hematite Optical Properties

Labradorite

Hematite

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Optical Properties

Luster

Vitreous, Pearly

Pleochroism

O = brownish red; E = yellowish red

Dispersion

0.010.05

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.554-1.5732.690-3.220

1 3.25

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Optic Character

Crystal System

Triclinic

Trigonal

Birefringence

0.008-0.0100.280

0 0.296

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Clarity

Transparent

OpaqueHerve Nicolas Lazzarelli

Labradorite and Hematite Optic Character

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

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