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Staurolite
Staurolite

Elbaite
Elbaite



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X
Staurolite
X
Elbaite

Staurolite and Elbaite Optical Properties

Optical Properties

Luster

Resinous
Vitreous

Pleochroism

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

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.736-1.7621.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.009-0.0150.014-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Staurolite and Elbaite Optic Character

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

Similar to their colors, Staurolite and Elbaite 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.