Scheelite and Shattuckite Optical Properties

Scheelite

Shattuckite

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Silky

1.2 Pleochroism

Definite dichoric in yellow (yellow to orange-brown)

X = very pale blue; Y = pale blue; Z = deep blue

1.3 Dispersion

0.04NA

0.007 1

1.4 Transparency

Translucent, Transparent

Translucent

1.5 Refractive Index

1.918-1.9361.752-1.815

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Orthorhombic

1.8 Birefringence

0.0160.063

0 0.296

1.9 Clarity

Translucent

Scheelite and Shattuckite Optic Character

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

Similar to their colors, Scheelite and Shattuckite 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.