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Hibonite
Hibonite

Pollucite
Pollucite



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Hibonite
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Pollucite

Hibonite and Pollucite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
O = brownish gray; E = gray
Not Available
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Transparent, Translucent
1.5 Refractive Index
1.79-1.8071.517-1.525
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Isometric
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Transparent

Hibonite and Pollucite Optic Character

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

Similar to their colors, Hibonite and Pollucite 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.