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Hibonite
Hibonite

Kashmir sapphire
Kashmir sapphire



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Hibonite
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Kashmir sapphire

Hibonite and Kashmir sapphire 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)
Not Available
1.5 Refractive Index
1.79-1.807Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Not Available

Hibonite and Kashmir sapphire Optic Character

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

Similar to their colors, Hibonite and Kashmir sapphire 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.