Titanite Sphene and Cacoxenite Optical Properties

Titanite Sphene

Cacoxenite

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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;

visible: O = Pale yellow E = Canary yellow to yellow orange

1.3 Dispersion

0.05NA

0.007 1

1.4 Transparency

Transparent, Translucent

Not Available

1.5 Refractive Index

1.843-2.1101.575-1.585

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Hexagonal

1.8 Birefringence

0.100-0.192Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Titanite Sphene and Cacoxenite Optic Character

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

Similar to their colors, Titanite Sphene and Cacoxenite 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.