Chrysoberyl and Ajoite Optical Properties

Chrysoberyl

Ajoite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

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

X: very light bluish green; Y and Z: brilliant bluish green

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Not Available

1.5 Refractive Index

1.746-1.7631.550

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Orthorhombic

Triclinic

1.8 Birefringence

0.007-0.0130.091

0 0.296

1.9 Clarity

Transparent

Not Available

Chrysoberyl and Ajoite Optic Character

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

Similar to their colors, Chrysoberyl and Ajoite 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.