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Gahnospinel
Gahnospinel

Variscite
Variscite



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Gahnospinel
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Variscite

Gahnospinel and Variscite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Waxy
1.2 Pleochroism
AbsentWalter Schumann
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
1.735-1.7901.560-1.594
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Orthorhombic
1.8 Birefringence
Not Available0.031
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Gahnospinel and Variscite Optic Character

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

Gahnospinel and Variscite Transparency

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