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Bronzite
Bronzite

Andesine
Andesine



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Bronzite
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Andesine

Bronzite and Andesine Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
colorless.

Dispersion

0.020.70
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.6681.543-1.564
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Triclinic

Birefringence

0.0140.007-0.011
0 0.296
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Clarity

Transparent
Transparent

Bronzite and Andesine Optic Character

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

Bronzite and Andesine Transparency

Similar to their colors, Bronzite and Andesine 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.