Hibonite and Morganite Optical Properties

Hibonite

Morganite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

O = brownish gray; E = gray

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.79-1.8071.573-1.600

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

1.8 Birefringence

Not Available0.005-0.009

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

Transparent to translucent

Hibonite and Morganite Optic Character

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

Similar to their colors, Hibonite and Morganite 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.