Ajoite and Onyx Optical Properties

Ajoite

Onyx

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

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

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent, Opaque, Translucent to opaque

1.5 Refractive Index

1.5501.530-1.543

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Trigonal

1.8 Birefringence

0.091Not Available

0 0.296

1.9 Clarity

Not Available

OpaqueHerve Nicolas Lazzarelli

Ajoite and Onyx Optic Character

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

Similar to their colors, Ajoite and Onyx 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, Ajoite is Not Available while Ajoite is Not Available in appearance.