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Austinite
Austinite

Staurolite
Staurolite



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X
Austinite
X
Staurolite

Austinite and Staurolite Optical Properties

Optical Properties

Luster

Subadamantine, Silky
Resinous

Pleochroism

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

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.7591.736-1.762
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.0240.009-0.015
0 0.296
👆🏻

Clarity

-
-

Austinite and Staurolite Optic Character

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

Austinite and Staurolite Transparency

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