Shattuckite and Norbergite Optical Properties

Shattuckite

Norbergite

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

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

Pale yellow very pale yellow colorlessAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.752-1.8151.563-1.593

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Not Available

1.8 Birefringence

0.063Not Available

0 0.296

1.9 Clarity

Translucent

Transparent

Shattuckite and Norbergite Optic Character

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

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Shattuckite and Norbergite Transparency

Similar to their colors, Shattuckite and Norbergite 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.