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Lazurite
Lazurite

Andradite
Andradite



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Lazurite
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Andradite

Lazurite and Andradite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine, Resinous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NA0.06
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.5001.88-1.94
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
cubic
1.8 Birefringence
Not Available0.057
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Lazurite and Andradite Optic Character

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

Lazurite and Andradite Transparency

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