Cacoxenite and Hibonite Optical Properties

Cacoxenite

Hibonite

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

visible: O = Pale yellow E = Canary yellow to yellow orange

O = brownish gray; E = gray

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Handbook of mineralogy (2001)

1.5 Refractive Index

1.575-1.5851.79-1.807

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

Handbook of mineralogy (2001)

Cacoxenite and Hibonite Optic Character

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

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Cacoxenite and Hibonite Transparency

Similar to their colors, Cacoxenite and Hibonite 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, Cacoxenite is Not Available while Cacoxenite is Not Available in appearance.