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Hibonite
Hibonite

Verdite
Verdite



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Hibonite
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Verdite

Hibonite and Verdite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky
1.2 Pleochroism
O = brownish gray; E = gray
Extreme
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Translucent
1.5 Refractive Index
1.79-1.8071.580
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Translucent

Hibonite and Verdite Optic Character

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

Similar to their colors, Hibonite and Verdite 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.