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Carnelian
Carnelian

Lazulite
Lazulite



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Carnelian
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Lazulite

Carnelian and Lazulite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Transparent to nearly opaque
Transparent, Translucent
1.5 Refractive Index
1.535-1.539
1.604-1.646
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.003-0.009
0.031-0.036
1.9 Clarity
Translucent
Transparent

Carnelian and Lazulite Optic Character

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

Carnelian and Lazulite Transparency

Similar to their colors, Carnelian and Lazulite 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, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.