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Ajoite
Ajoite

Mottramite
Mottramite



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Ajoite
X
Mottramite

Ajoite and Mottramite Optical Properties

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Optical Properties

Luster

Vitreous
Greasy

Pleochroism

X: very light bluish green; Y and Z: brilliant bluish green
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.5502.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0910.150
0 0.296
👆🏻

Clarity

-
-

Ajoite and Mottramite Optic Character

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

Similar to their colors, Ajoite and Mottramite 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.