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Ajoite
Ajoite

Thulite
Thulite



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Ajoite
X
Thulite

Ajoite and Thulite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

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

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.5501.695
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0910.006-0.018
0 0.296
👆🏻

Clarity

-
OpaqueHerve Nicolas Lazzarelli

Ajoite and Thulite Optic Character

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

Ajoite and Thulite Transparency

Similar to their colors, Ajoite and Thulite 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 while Ajoite is in appearance.