Chrysoprase and Titanite Sphene Optical Properties

Chrysoprase

Titanite Sphene

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Not Available

1.2 Pleochroism

AbsentWalter Schumann

Green stones strong trichroism: typically colorless greenish yellow brownish to yellow;

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

0.05

Rank: 9 (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

Transparent, Translucent

1.5 Refractive Index

1.530-1.543

1.843-2.110

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.004

0.100-0.192

1.9 Clarity

Translucent

Transparent

Chrysoprase and Titanite Sphene Optic Character

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

Similar to their colors, Chrysoprase and Titanite Sphene 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.