Scheelite and Titanite Sphene Optical Properties

Scheelite

Titanite Sphene

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Not Available

1.2 Pleochroism

Definite dichoric in yellow (yellow to orange-brown)

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

1.3 Dispersion

0.040.05

0.007 1

1.4 Transparency

Translucent, Transparent

Transparent, Translucent

1.5 Refractive Index

1.918-1.9361.843-2.110

1 3.25

1.13 Optic Character

Not Available

1.14 Crystal System

tetragonal

Not Available

1.15 Birefringence

0.0160.100-0.192

0 0.296

1.16 Clarity

Translucent

Transparent

Scheelite and Titanite Sphene Optic Character

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

Scheelite Vs Star Sapphire

Scheelite Vs Star Ruby

Scheelite Vs Stibiotantalite

Scheelite and Titanite Sphene Transparency

Similar to their colors, Scheelite 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.