Riesling Beryl and Titanite Sphene Optical Properties

Riesling Beryl

Titanite Sphene

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Strongly dichroicMartin H. Read

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

1.3 Dispersion

0.010.05

0.007 1

1.4 Transparency

Not Available

Transparent, Translucent

1.5 Refractive Index

1.591.843-2.110

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.004-0.0100.100-0.192

0 0.296

1.9 Clarity

Not Available

Transparent

Riesling Beryl and Titanite Sphene Optic Character

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

Similar to their colors, Riesling Beryl 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, Riesling Beryl is Not Available while Riesling Beryl is Not Available in appearance.