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Sugilite
Sugilite

Variscite
Variscite



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Sugilite
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Variscite

Sugilite and Variscite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Waxy
1.2 Pleochroism
Weak
MissingWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
1.607-1.6121.560-1.594
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.0030.031
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Sugilite and Variscite Optic Character

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

Sugilite and Variscite Transparency

Similar to their colors, Sugilite 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, Sugilite is Translucent while Sugilite is Translucent in appearance.