Antigorite and Titanite Sphene Optical Properties

Antigorite

Titanite Sphene

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1 Optical Properties

1.1 Luster

Waxy, Silky, Resinous, Greasy

Not Available

1.2 Pleochroism

pale greenish yellow.

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

1.3 Dispersion

NA0.05

0.007 1

1.4 Transparency

Translucent

Transparent, Translucent

1.5 Refractive Index

1.530-1.5751.843-2.110

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Not Available

1.8 Birefringence

Not Available0.100-0.192

0 0.296

1.9 Clarity

Translucent

Transparent

Antigorite and Titanite Sphene Optic Character

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

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Antigorite and Titanite Sphene Transparency

Similar to their colors, Antigorite 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, Antigorite is Translucent while Antigorite is Translucent in appearance.