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Azurite
Azurite

Andalusite
Andalusite



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Azurite
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Andalusite

Azurite and Andalusite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
Visible shades of blue
strongly trichroic
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.720-1.8501.627-1.650
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.1080.009-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Azurite and Andalusite Optic Character

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

Azurite and Andalusite Transparency

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