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Nephrite
Nephrite

Aventurine
Aventurine



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Aventurine

Nephrite and Aventurine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
None
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Translucent, Opaque . May be translucent when backlit on the edges.
1.5 Refractive Index
1.600-1.627
1.544-1.553
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.027
0.007-0.010
1.9 Clarity
Translucent
Translucent

Nephrite and Aventurine Optic Character

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

Similar to their colors, Nephrite and Aventurine 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.