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Staurolite
Staurolite

Taaffeite
Taaffeite



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X
Staurolite
X
Taaffeite

Staurolite and Taaffeite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Resinous
X = colorless; Y = pale yellow; Z = golden yellow
0.02
-
1.736-1.762
-
monoclinic
0.009-0.015
-
 
Vitreous
Weak
0.02
-
1.70-1.73
-
Hexagonal
0.055
-

Staurolite and Taaffeite Optic Character

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

Similar to their colors, Staurolite and Taaffeite 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.