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Jade
Jade

Lapis lazuli
Lapis lazuli



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Jade
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Lapis lazuli

Jade and Lapis lazuli Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
NoneNone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Translucent to opaque
Opaque
1.5 Refractive Index
1.600-1.6881.500-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.020-0.027Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Gemstones of the world (2001)

Jade and Lapis lazuli Optic Character

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

Jade and Lapis lazuli Transparency

Similar to their colors, Jade and Lapis lazuli 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, Jade is Translucent and Translucent to opaque while Jade is Translucent and Translucent to opaque in appearance.