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Shattuckite
Shattuckite

Dallasite
Dallasite



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X
Shattuckite
X
Dallasite

Shattuckite and Dallasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Silky
X = very pale blue; Y = pale blue; Z = deep blue
0.02
Translucent
1.752-1.815
-
Orthorhombic
0.063
Translucent
 
-
-
0.01
-
1.540
-
-
0.008-0.010
-

Shattuckite and Dallasite Optic Character

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

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