Chrysoprase and Rosasite Optical Properties

Chrysoprase

Rosasite

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Silky, Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

Not Available

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

Not Available

1.5 Refractive Index

1.530-1.543

1.672-1.688

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

monoclinic

1.8 Birefringence

0.004

0.139-0.143

1.9 Clarity

Translucent

Not Available

Chrysoprase and Rosasite Optic Character

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

Similar to their colors, Chrysoprase and Rosasite 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.