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Bowenite
Bowenite

Bertrandite
Bertrandite



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Bowenite
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Bertrandite

Bowenite and Bertrandite Optical Properties

Optical Properties

Luster

Waxy, Silky, Resinous, Greasy
Vitreous

Pleochroism

-
none.

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

TranslucentHerve Nicolas Lazzarelli
TransparentAnthony et al

Refractive Index

1.530-1.5751.583-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
TransparentAnthony et al

Bowenite and Bertrandite Optic Character

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

Bowenite and Bertrandite Transparency

Similar to their colors, Bowenite and Bertrandite 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, Bowenite is TranslucentHerve Nicolas Lazzarelli while Bowenite is TranslucentHerve Nicolas Lazzarelli in appearance.