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Variscite
Variscite

Mottramite
Mottramite



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Variscite
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Mottramite

Variscite and Mottramite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Greasy
1.2 Pleochroism
MissingWalter Schumann
Visible X=Y= canary yellow to greenish yellow
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Not Available
1.5 Refractive Index
1.560-1.5942.170
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.0310.150
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Variscite and Mottramite Optic Character

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

Variscite and Mottramite Transparency

Similar to their colors, Variscite 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, Variscite is Opaque . May be translucent when backlit on the edges. and Translucent while Variscite is Opaque . May be translucent when backlit on the edges. and Translucent in appearance.