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Hibonite
Hibonite

Elbaite
Elbaite



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Hibonite
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Elbaite

Hibonite and Elbaite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
O = brownish gray; E = gray
Pale green
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Transparent
1.5 Refractive Index
1.79-1.8071.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
Not Available0.014-0.032
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Transparent

Hibonite and Elbaite Optic Character

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

Similar to their colors, Hibonite and Elbaite 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.