Chrysoprase and Chalcedony Optical Properties

Chrysoprase

Chalcedony

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

None

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Translucent, Translucent, Opaque, Translucent to nearly opaque

Translucent, Translucent to opaque

1.5 Refractive Index

1.530-1.543

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

1.8 Birefringence

0.004

0.003-0.009

1.9 Clarity

Translucent

Chrysoprase and Chalcedony Optic Character

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

Similar to their colors, Chrysoprase and Chalcedony 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.