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Norbergite
Norbergite

Hematite
Hematite



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Norbergite
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Hematite

Norbergite and Hematite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Pale yellow very pale yellow colorlessAnthony et al
O = brownish red; E = yellowish red

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.563-1.5932.690-3.220
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.280
0 0.296
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Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Norbergite and Hematite Optic Character

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

Norbergite and Hematite Transparency

Similar to their colors, Norbergite 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, Norbergite is Transparent while Norbergite is Transparent in appearance.