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Staurolite
Staurolite

Lepidolite
Lepidolite



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X
Staurolite
X
Lepidolite

Staurolite and Lepidolite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Pearly

Pleochroism

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

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.736-1.7621.525-1.587
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.009-0.0150.0290-0.0380
0 0.296
👆🏻

Clarity

-
Transparent

Staurolite and Lepidolite Optic Character

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

Similar to their colors, Staurolite and Lepidolite 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.