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Bronzite
Bronzite

Norbergite
Norbergite



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Bronzite
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Norbergite

Bronzite and Norbergite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Pale yellow very pale yellow colorlessAnthony et al

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Translucent
Transparent

Refractive Index

1.6681.563-1.593
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.014-9999
0 0.296
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Clarity

Transparent
Transparent

Bronzite and Norbergite Optic Character

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

Bronzite and Norbergite Transparency

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