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Hibonite
Hibonite

Rhodochrosite
Rhodochrosite



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Hibonite
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Rhodochrosite

Hibonite and Rhodochrosite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
O = brownish gray; E = gray
Weak
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Handbook of mineralogy (2001)
Transparent, Opaque, Transparent to nearly opaque
1.5 Refractive Index
1.79-1.8071.60
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
Not Available0.208-0.220
Achroite
0 0.296
1.9 Clarity
Handbook of mineralogy (2001)
Transparent to nearly opaque

Hibonite and Rhodochrosite Optic Character

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

Similar to their colors, Hibonite and Rhodochrosite 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.