Titanite Sphene and Crystal Opal Optical Properties

Titanite Sphene

Crystal Opal

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

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

AbsentWalter Schumann

1.3 Dispersion

0.05None

0.007 1

1.4 Transparency

Transparent, Translucent

Transparent

1.5 Refractive Index

1.843-2.1101.370-1.

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.100-0.192Not Available

0 0.296

1.9 Clarity

Transparent

Titanite Sphene and Crystal Opal Optic Character

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

Similar to their colors, Titanite Sphene and Crystal Opal 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.