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Shattuckite
Shattuckite

Simpsonite
Simpsonite



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Shattuckite
X
Simpsonite

Shattuckite and Simpsonite Optical Properties

Optical Properties

Luster

Silky
Adamantine

Pleochroism

X = very pale blue; Y = pale blue; Z = deep blue
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.752-1.8151.994-2.040
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.0630.046
0 0.296
👆🏻

Clarity

Translucent
-

Shattuckite and Simpsonite Optic Character

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

Shattuckite and Simpsonite Transparency

Similar to their colors, Shattuckite and Simpsonite 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, Shattuckite is Translucent while Shattuckite is Translucent in appearance.