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Hematite
Hematite

Paraiba
Paraiba



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Hematite
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Paraiba

Hematite and Paraiba Optical Properties

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Optical Properties

Luster

-
-

Pleochroism

O = brownish red; E = yellowish red
-

Dispersion

0.050.02
0.005 1
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Transparency

OpaqueHerve Nicolas Lazzarelli
-

Refractive Index

2.690-3.2201.618-1.643
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.280-9999
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
-

Hematite and Paraiba Optic Character

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

Similar to their colors, Hematite and Paraiba 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.