Pearl and Titanite Sphene Optical Properties

Pearl

Titanite Sphene

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1 Optical Properties

1.1 Luster

Pearly

Not Available

1.2 Pleochroism

AbsentWalter Schumann

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

1.3 Dispersion

None0.05

0.007 1

1.4 Transparency

Translucent, Opaque

Transparent, Translucent

1.5 Refractive Index

1.52-1.661.843-2.110

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Not Available

1.8 Birefringence

0.1560.100-0.192

0 0.296

1.9 Clarity

Translucent

Transparent

Pearl and Titanite Sphene Optic Character

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

Compare Blue Gemstones

Pearl Vs Prase

Pearl Vs Precious Opal

Pearl Vs Prase Opal

Pearl and Titanite Sphene Transparency

Similar to their colors, Pearl 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.