Yttrium Aluminium Garnet and Scheelite Optical Properties

Yttrium Aluminium Garnet

Scheelite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous, Adamantine

1.2 Pleochroism

Not Available

Definite dichoric in yellow (yellow to orange-brown)

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Translucent, Transparent

1.5 Refractive Index

1.8331.918-1.936

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

tetragonal

1.8 Birefringence

Not Available0.016

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

Yttrium Aluminium Garnet and Scheelite Optic Character

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

Similar to their colors, Yttrium Aluminium Garnet and Scheelite 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, Yttrium Aluminium Garnet is Gemmological Tables (2004) while Yttrium Aluminium Garnet is Gemmological Tables (2004) in appearance.