Catapleiite and Chrysoberyl Optical Properties

Catapleiite

Chrysoberyl

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Optical Properties

Luster

Vitreous

Pleochroism

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

Dispersion

0.010.02

0.005 1

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Transparency

TransparentUlrich Henn and Claudio C. Milisenda

Transparent, Translucent, Transparent to translucent

Refractive Index

1.590-1.6291.746-1.763

1 3.25

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Optic Character

Biaxial/+

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)

Orthorhombic

Birefringence

0.0390.007-0.013

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

Catapleiite and Chrysoberyl Optic Character

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

Similar to their colors, Catapleiite and Chrysoberyl 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, Catapleiite is TransparentUlrich Henn and Claudio C. Milisenda while Catapleiite is TransparentUlrich Henn and Claudio C. Milisenda in appearance.