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Staurolite
Staurolite

Variscite
Variscite



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X
Staurolite
X
Variscite

Staurolite and Variscite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Waxy

Pleochroism

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

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Translucent, Opaque . May be translucent when backlit on the edges.

Refractive Index

1.736-1.7621.560-1.594
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.009-0.0150.031
0 0.296
👆🏻

Clarity

-
Translucent

Staurolite and Variscite Optic Character

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

Staurolite and Variscite Transparency

Similar to their colors, Staurolite and Variscite 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 while Staurolite is in appearance.