Jade and Spinel Optical Properties

Jade

Spinel

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Absent

1.3 Dispersion

None0.02

0.007 1

1.4 Transparency

Translucent, Translucent to opaque

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.600-1.6881.73

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Isometric

1.8 Birefringence

0.020-0.027Not Available

0 0.296

1.9 Clarity

Translucent

TransparentUlrich Henn and Claudio C. Milisenda

Jade and Spinel Optic Character

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

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Jade and Spinel Transparency

Similar to their colors, Jade and Spinel 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.