Ajoite and Dumortierite Optical Properties

Ajoite

Dumortierite

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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

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Not Available

Translucent, Translucent to opaque

1.5 Refractive Index

1.5501.669-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Orthorhombic

1.8 Birefringence

0.0910.011-0.037

0 0.296

1.9 Clarity

Not Available

Translucent

Ajoite and Dumortierite Optic Character

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

Similar to their colors, Ajoite and Dumortierite 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.