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Andalusite
Andalusite

Ajoite
Ajoite



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Andalusite
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Ajoite

Andalusite and Ajoite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
strongly trichroic
X: very light bluish green; Y and Z: brilliant bluish green
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.627-1.6501.550
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.009-0.0100.091
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Andalusite and Ajoite Optic Character

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

Andalusite and Ajoite Transparency

Similar to their colors, Andalusite 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, Andalusite is Translucent and Transparent while Andalusite is Translucent and Transparent in appearance.