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Omphacite and Wavellite Optical Properties


Wavellite and Omphacite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous, Pearly   

Pleochroism
Weak: colorless -- very pale green -- very pale green   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)   
Gems   

Refractive Index
1.662-1.723   
1.518-1.561   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.025   

Clarity
TranslucentAnthony et al   
Gems   

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Omphacite and Wavellite Optic Character

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

Similar to their colors, Omphacite and Wavellite 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, Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Omphacite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.

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