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Bronzite
Bronzite

Danburite
Danburite



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Bronzite
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Danburite

Bronzite and Danburite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
Weak: pale yellow yellow

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Translucent
-

Refractive Index

1.6681.627-1.639
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.0140.006
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Bronzite and Danburite Optic Character

Bronzite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Bronzite and Danburite 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 Danburite 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. Danburite has Biaxial/+ character.

Bronzite and Danburite Transparency

Similar to their colors, Bronzite and Danburite 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.