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Demantoid
Demantoid

Variscite
Variscite



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Demantoid
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Variscite

Demantoid and Variscite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Waxy
1.2 Pleochroism
None
MissingWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
1.880-1.8901.560-1.594
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Orthorhombic
1.8 Birefringence
Not Available0.031
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Demantoid and Variscite Optic Character

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

Demantoid and Variscite Transparency

Similar to their colors, Demantoid 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, Demantoid is Gemmological Tables (2004) while Demantoid is Gemmological Tables (2004) in appearance.