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Nepouite
Nepouite

Hematite
Hematite



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Nepouite
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Hematite

Nepouite and Hematite Optical Properties

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Optical Properties

Luster

Waxy, Pearly
-

Pleochroism

Weak
O = brownish red; E = yellowish red

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.600-1.6302.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

-99990.280
0 0.296
👆🏻

Clarity

-
OpaqueHerve Nicolas Lazzarelli

Nepouite and Hematite Optic Character

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

Nepouite and Hematite Transparency

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