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Hibonite
Hibonite

Leucite
Leucite



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Hibonite
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Leucite

Hibonite and Leucite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
O = brownish gray; E = gray
Not Available
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.79-1.8071.504-1.510
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
tetragonal
1.8 Birefringence
Not Available0.001
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
TransparentUlrich Henn and Claudio C. Milisenda

Hibonite and Leucite Optic Character

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

Similar to their colors, Hibonite and Leucite 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.