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Aragonite
Aragonite

Staurolite
Staurolite



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Aragonite
X
Staurolite

Aragonite and Staurolite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Resinous

Pleochroism

StrongArthur Thomas
X = colorless; Y = pale yellow; Z = golden yellow

Dispersion

0.170.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.525-1.6861.736-1.762
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.1550.009-0.015
0 0.296
👆🏻

Clarity

Transparent
-

Aragonite and Staurolite Optic Character

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

Aragonite and Staurolite Transparency

Similar to their colors, Aragonite 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, Aragonite is Transparent and Translucent while Aragonite is Transparent and Translucent in appearance.