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Neptunite
Neptunite

Rhodolite
Rhodolite



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Neptunite
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Rhodolite

Neptunite and Rhodolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
x=yellow-orange
None
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.692-1.7341.760
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.0294-0.04520.010-0.014
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Neptunite and Rhodolite Optic Character

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

Neptunite and Rhodolite Transparency

Similar to their colors, Neptunite and Rhodolite 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, Neptunite is Translucent while Neptunite is Translucent in appearance.