Chrysoberyl and Shattuckite Optical Properties

Chrysoberyl

Shattuckite

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1 Optical Properties

1.1 Luster

Vitreous

Silky

1.2 Pleochroism

X = red; Y = yellow-orange; Z = emerald-green

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

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent

1.5 Refractive Index

1.746-1.7631.752-1.815

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.007-0.0130.063

0 0.296

1.9 Clarity

Transparent

Translucent

Chrysoberyl and Shattuckite Optic Character

Chrysoberyl and Shattuckite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysoberyl and Shattuckite 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 Chrysoberyl and Shattuckite 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. Chrysoberyl has Biaxial/+ character.

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Chrysoberyl and Shattuckite Transparency

Similar to their colors, Chrysoberyl and Shattuckite 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, Chrysoberyl is Translucent, Transparent and Transparent to translucent while Chrysoberyl is Translucent, Transparent and Transparent to translucent in appearance.