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Bronzite
Bronzite

Franklinite
Franklinite



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Bronzite
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Franklinite

Bronzite and Franklinite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
-

Dispersion

0.020.19
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.668-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

Birefringence

0.014-9999
0 0.296
👆🏻

Clarity

Transparent
Translucent

Bronzite and Franklinite Optic Character

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

Similar to their colors, Bronzite and Franklinite 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.