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Nephrite
Nephrite

Spodumene
Spodumene



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Nephrite
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Spodumene

Nephrite and Spodumene Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
None
Strong in kunzite: α-purple
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.600-1.6271.657-1.681
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.0270.014-0.018
Achroite
0 0.296
1.9 Clarity
Translucent
Gems

Nephrite and Spodumene Optic Character

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

Nephrite and Spodumene Transparency

Similar to their colors, Nephrite and Spodumene 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, Nephrite is Translucent while Nephrite is Translucent in appearance.