Titanite Sphene and Tigers Eye Optical Properties

Titanite Sphene

Tigers Eye

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1 Optical Properties

1.1 Luster

Not Available

Silky

1.2 Pleochroism

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

Not Available

1.3 Dispersion

0.05None

0.007 1

1.4 Transparency

Transparent, Translucent

Opaque

1.5 Refractive Index

1.843-2.1101.534-1.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

0.100-0.192Not Available

0 0.296

1.9 Clarity

Transparent

Gemstones of the world (2001) More from other references

Titanite Sphene and Tigers Eye Optic Character

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

Similar to their colors, Titanite Sphene and Tigers Eye 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, Titanite Sphene is Translucent and Transparent while Titanite Sphene is Translucent and Transparent in appearance.