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Hibonite
Hibonite

Variscite
Variscite



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Hibonite
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Variscite

Hibonite and Variscite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Waxy
1.2 Pleochroism
O = brownish gray; E = gray
MissingWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
1.79-1.8071.560-1.594
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
Not Available0.031
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Translucent

Hibonite and Variscite Optic Character

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

Hibonite and Variscite Transparency

Similar to their colors, Hibonite 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, Hibonite is Handbook of mineralogy (2001) while Hibonite is Handbook of mineralogy (2001) in appearance.