Chrysoprase and Zincite Optical Properties

Chrysoprase

Zincite

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Subadamantine, Resinous

1.2 Pleochroism

AbsentWalter Schumann

Very weak

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent, Translucent, Opaque, Translucent to nearly opaque

TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references

1.5 Refractive Index

1.530-1.5432.013-2.029

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Hexagonal

1.8 Birefringence

0.0040.016

0 0.296

1.9 Clarity

Translucent

TransparentRobert C. Kammerling

Chrysoprase and Zincite Optic Character

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

Similar to their colors, Chrysoprase and Zincite 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.