Shattuckite and Omphacite Optical Properties

Shattuckite

Omphacite

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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

Weak: colorless -- very pale green -- very pale green

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.752-1.8151.662-1.723

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

TranslucentAnthony et al

Shattuckite and Omphacite Optic Character

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

Similar to their colors, Shattuckite and Omphacite 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.