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Baddeleyite
Baddeleyite

Hibonite
Hibonite



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Baddeleyite
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Hibonite

Baddeleyite and Hibonite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

DistinctArthur Thomas
O = brownish gray; E = gray

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

2.13-2.201.79-1.807
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c
Hexagonal

Birefringence

0.07-9999
0 0.296
👆🏻

Clarity

Transparent
-

Baddeleyite and Hibonite Optic Character

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

Baddeleyite and Hibonite Transparency

Similar to their colors, Baddeleyite 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, Baddeleyite is Transparent while Baddeleyite is Transparent in appearance.