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Nepouite
Nepouite

Hibonite
Hibonite



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Nepouite
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Hibonite

Nepouite and Hibonite Optical Properties

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1 Optical Properties
1.1 Luster
Waxy, Pearly
Vitreous
1.2 Pleochroism
Weak
O = brownish gray; E = gray
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Handbook of mineralogy (2001)
1.5 Refractive Index
1.600-1.6301.79-1.807
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Handbook of mineralogy (2001)

Nepouite and Hibonite Optic Character

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

Nepouite and Hibonite Transparency

Similar to their colors, Nepouite 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, Nepouite is Not Available while Nepouite is Not Available in appearance.