Liddicoatite and Titanite Sphene Optical Properties

Liddicoatite

Titanite Sphene

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Strong: dark brown light brownAnthony et al

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

1.3 Dispersion

NA0.05

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

Not Available1.843-2.110

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

Not Available0.100-0.192

0 0.296

1.9 Clarity

Transparent

Liddicoatite and Titanite Sphene Optic Character

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

Similar to their colors, Liddicoatite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.