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Hibonite
Hibonite

Rossmanite
Rossmanite



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Hibonite
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Rossmanite

Hibonite and Rossmanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
O = brownish gray; E = gray
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
TransparentWebmineral.com, Mineralogy Database (2012)
1.5 Refractive Index
1.79-1.8071.624-1.645
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
Not Available0.021
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
TransparentWebmineral.com

Hibonite and Rossmanite Optic Character

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

Similar to their colors, Hibonite and Rossmanite 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.