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Ajoite
Ajoite

Bertrandite
Bertrandite



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Ajoite
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Bertrandite

Ajoite and Bertrandite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
X: very light bluish green; Y and Z: brilliant bluish green
none.
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.550
1.583-1.614
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
1.8 Birefringence
0.091
Not Available
1.9 Clarity
Not Available
TransparentAnthony et al

Ajoite and Bertrandite Optic Character

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

Similar to their colors, Ajoite and Bertrandite 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.

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