Staurolite and Tigers Eye Optical Properties

Staurolite

Tigers Eye

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1 Optical Properties

1.1 Luster

Resinous

Silky

1.2 Pleochroism

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

Not Available

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Blue Chart Gem Identification (2010) More from other references

Opaque

1.5 Refractive Index

1.736-1.7621.534-1.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Trigonal

1.8 Birefringence

0.009-0.015Not Available

0 0.296

1.9 Clarity

Blue Chart Gem Identification (2010) More from other references

Gemstones of the world (2001) More from other references

Staurolite and Tigers Eye Optic Character

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

Similar to their colors, Staurolite and Tigers Eye 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, Staurolite is Blue Chart Gem Identification (2010) More from other references while Staurolite is Blue Chart Gem Identification (2010) More from other references in appearance.