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Mottramite and Verdite Optical Properties


Verdite and Mottramite Optical Properties


Optical Properties

Luster
Greasy   
Vitreous, Silky   

Pleochroism
Visible X=Y= canary yellow to greenish yellow   
Extreme   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Translucent   

Refractive Index
2.170   
1.580   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c   

Birefringence
0.150   
Not Available   

Clarity
Not Available   
Translucent   

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Mottramite and Verdite Optic Character

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

Similar to their colors, Mottramite and Verdite 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, Mottramite is Not Available while Mottramite is Not Available in appearance.

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