Hibonite and Schultenite Optical Properties

Hibonite

Schultenite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Adamantine

1.2 Pleochroism

O = brownish gray; E = gray

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.79-1.8071.890-1.976

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

TransparentAnthony et al

Hibonite and Schultenite Optic Character

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

Similar to their colors, Hibonite and Schultenite 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.