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Grandidierite
Grandidierite

Ajoite
Ajoite



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Grandidierite
X
Ajoite

Grandidierite and Ajoite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
visible
X: very light bluish green; Y and Z: brilliant bluish green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.578-1.6391.550
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.037-0.0390.091
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Not Available

Grandidierite and Ajoite Optic Character

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

Grandidierite and Ajoite Transparency

Similar to their colors, Grandidierite 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, Grandidierite is Gemmological Tables (2004) More from other references while Grandidierite is Gemmological Tables (2004) More from other references in appearance.