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Hematite
Hematite

Elbaite
Elbaite



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Hematite
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Elbaite

Hematite and Elbaite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

O = brownish red; E = yellowish red
Pale green

Dispersion

0.050.02
0.005 1
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Transparency

OpaqueHerve Nicolas Lazzarelli
Transparent

Refractive Index

2.690-3.2201.614-1.666
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.2800.014-0.032
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
Transparent

Hematite and Elbaite Optic Character

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

Hematite and Elbaite Transparency

Similar to their colors, Hematite and Elbaite 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, Hematite is OpaqueHerve Nicolas Lazzarelli while Hematite is OpaqueHerve Nicolas Lazzarelli in appearance.