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Hibonite
Hibonite

Scheelite
Scheelite



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Hibonite
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Scheelite

Hibonite and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Adamantine
1.2 Pleochroism
O = brownish gray; E = gray
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Translucent, Transparent
1.5 Refractive Index
1.79-1.8071.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
tetragonal
1.8 Birefringence
Not Available0.016
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Translucent

Hibonite and Scheelite Optic Character

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

Similar to their colors, Hibonite and Scheelite 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.