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Neptunite
Neptunite

Amber
Amber



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Neptunite
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Amber

Neptunite and Amber Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Resinous
1.2 Pleochroism
x=yellow-orange
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.692-1.7341.539-1.545
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Amorphous
1.8 Birefringence
0.0294-0.0452Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Neptunite and Amber Optic Character

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

Similar to their colors, Neptunite and Amber 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.