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Legrandite
Legrandite

Hematite
Hematite



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Legrandite
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Hematite

Legrandite and Hematite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Colorless
O = brownish red; E = yellowish red

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.702-1.7402.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0600.280
0 0.296
👆🏻

Clarity

-
OpaqueHerve Nicolas Lazzarelli

Legrandite and Hematite Optic Character

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

Legrandite and Hematite Transparency

Similar to their colors, Legrandite 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, Legrandite is while Legrandite is in appearance.