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Neptunite
Neptunite

Scheelite
Scheelite



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Neptunite
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Scheelite

Neptunite and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Adamantine
1.2 Pleochroism
x=yellow-orange
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Transparent
1.5 Refractive Index
1.692-1.7341.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
tetragonal
1.8 Birefringence
0.0294-0.04520.016
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Neptunite and Scheelite Optic Character

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

Similar to their colors, Neptunite and Scheelite 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.