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Titanite and Yttrium Aluminium Garnet Optical Properties


Yttrium Aluminium Garnet and Titanite Optical Properties


Optical Properties

Luster
Subadamantine, Resinous   
Not Available   

Pleochroism
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004)   

Refractive Index
1.885-1.990   
1.833   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.105-0.135   
Not Available   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Titanite and Yttrium Aluminium Garnet Optic Character

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

Similar to their colors, Titanite 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, Titanite is Not Available while Titanite is Not Available in appearance.

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