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Variscite
Variscite

Chalcedony
Chalcedony



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Variscite
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Chalcedony

Variscite and Chalcedony Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Waxy
Vitreous
1.2 Pleochroism
MissingWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Translucent, Translucent to opaque
1.5 Refractive Index
1.560-1.5941.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.0310.003-0.009
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Variscite and Chalcedony Optic Character

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

Similar to their colors, Variscite and Chalcedony 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.