Titanite and Anhydrite Optical Properties

Titanite

Anhydrite

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1 Optical Properties

1.1 Luster

Subadamantine, Resinous

Pearly, Greasy

1.2 Pleochroism

Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange

For violet varieties

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

Not Available

Transparent

1.5 Refractive Index

1.885-1.9901.570-1.614

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Orthorhombic

1.8 Birefringence

0.105-0.1350.042-0.044

0 0.296

1.9 Clarity

Not Available

Transparent

Titanite and Anhydrite Optic Character

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

Similar to their colors, Titanite and Anhydrite 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 is Not Available while Titanite is Not Available in appearance.