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Lazulite
Lazulite

Rosasite
Rosasite



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Lazulite
X
Rosasite

Lazulite and Rosasite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
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Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
0.01
Transparent, Translucent
1.604-1.646
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monoclinic
0.031-0.036
Transparent
 
Silky, Vitreous
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
0.03
-
1.672-1.688
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monoclinic
0.139-0.143
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Lazulite and Rosasite Optic Character

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

Lazulite and Rosasite Transparency

Similar to their colors, Lazulite and Rosasite 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, Lazulite is while Lazulite is in appearance.