Staurolite and Zircon Optical Properties

Staurolite

Zircon

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1 Optical Properties

1.1 Luster

Resinous

Adamantine

1.2 Pleochroism

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

Weak

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

Blue Chart Gem Identification (2010) More from other references

Transparent

1.5 Refractive Index

1.736-1.7621.810-2.024

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

tetragonal

1.8 Birefringence

0.009-0.0150.047-0.055

0 0.296

1.9 Clarity

Blue Chart Gem Identification (2010) More from other references

Transparent

Staurolite and Zircon Optic Character

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

Similar to their colors, Staurolite and Zircon 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.