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Hibonite
Hibonite

Lepidocrocite
Lepidocrocite



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Hibonite
X
Lepidocrocite

Hibonite and Lepidocrocite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

O = brownish gray; E = gray
Strong; X = colorless to yellow; Y = orange

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.79-1.8071.940
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Hibonite and Lepidocrocite Optic Character

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

Similar to their colors, Hibonite and Lepidocrocite 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 while Hibonite is in appearance.