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Neptunite
Neptunite

Forsterite
Forsterite



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Neptunite
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Forsterite

Neptunite and Forsterite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
x=yellow-orange
colorless.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.692-1.7341.635-1.671
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0294-0.04520.033-0.042
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Neptunite and Forsterite Optic Character

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

Similar to their colors, Neptunite and Forsterite 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.