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Neptunite
Neptunite

Pyrope
Pyrope



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Neptunite
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Pyrope

Neptunite and Pyrope Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
x=yellow-orange
None
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.02
Rank: 16 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.692-1.734
1.720-1.756
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.0294-0.0452
Not Available
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Neptunite and Pyrope Optic Character

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

Similar to their colors, Neptunite and Pyrope 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.

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