Yttrium Aluminium Garnet and Staurolite Optical Properties

Yttrium Aluminium Garnet

Staurolite

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1 Optical Properties

1.1 Luster

Not Available

Resinous

1.2 Pleochroism

Not Available

X = colorless; Y = pale yellow; Z = golden yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Blue Chart Gem Identification (2010) More from other references

1.5 Refractive Index

1.8331.736-1.762

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

monoclinic

1.8 Birefringence

Not Available0.009-0.015

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Blue Chart Gem Identification (2010) More from other references

Yttrium Aluminium Garnet and Staurolite Optic Character

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

Similar to their colors, Yttrium Aluminium Garnet and Staurolite 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.