Tugtupite and Yttrium Aluminium Garnet Optical Properties

Tugtupite

Yttrium Aluminium Garnet

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

ModerateArthur Thomas

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

OpaqueHerve Nicolas Lazzarelli

Gemmological Tables (2004)

1.5 Refractive Index

1.494-1.5041.833

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

0.008Not Available

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

TransparentUlrich Henn and Claudio C. Milisenda

Tugtupite and Yttrium Aluminium Garnet Optic Character

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

Similar to their colors, Tugtupite and Yttrium Aluminium Garnet 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, Tugtupite is OpaqueHerve Nicolas Lazzarelli while Tugtupite is OpaqueHerve Nicolas Lazzarelli in appearance.