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Wavellite and Hibonite Optical Properties


Hibonite and Wavellite Optical Properties


Optical Properties

Luster
Vitreous, Resinous, Pearly   
Vitreous   

Pleochroism
Weak   
O = brownish gray; E = gray   

Dispersion
Not Available   
Not Available   

Transparency
Gems   
Handbook of mineralogy (2001)   

Refractive Index
1.518-1.561   
1.79-1.807   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.025   
Not Available   

Clarity
Gems   
Handbook of mineralogy (2001)   

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Wavellite and Hibonite Optic Character

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

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Wavellite and Hibonite Transparency

Similar to their colors, Wavellite and Hibonite 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, Wavellite is Gems while Wavellite is Gems in appearance.

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