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Wardite
Wardite

Mottramite
Mottramite



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Wardite
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Mottramite

Wardite and Mottramite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.01
Transparent
1.590-1.599
-
-
0.009
Transparent
 
Greasy
Visible X=Y= canary yellow to greenish yellow
0.04
-
2.170
-
Orthorhombic
0.150
-

Wardite and Mottramite Optic Character

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

Wardite and Mottramite Transparency

Similar to their colors, Wardite and Mottramite 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, Wardite is while Wardite is in appearance.