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Augelite
Augelite

Staurolite
Staurolite



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X
Augelite
X
Staurolite

Augelite and Staurolite Optical Properties

Optical Properties

Luster

Pearly
Resinous

Pleochroism

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

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.570-1.5911.736-1.762
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.020-0.0210.009-0.015
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Augelite and Staurolite Optic Character

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

Augelite and Staurolite Transparency

Similar to their colors, Augelite 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, Augelite is while Augelite is in appearance.