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Mottramite
Mottramite

Variscite
Variscite



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Mottramite
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Variscite

Mottramite and Variscite Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Vitreous, Waxy
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
MissingWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
2.1701.560-1.594
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.1500.031
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Mottramite and Variscite Optic Character

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

Mottramite and Variscite Transparency

Similar to their colors, Mottramite and Variscite 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.