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Mottramite
Mottramite

Lazulite
Lazulite



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Mottramite
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Lazulite

Mottramite and Lazulite Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Not Available
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
2.170
1.604-1.646
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.150
0.031-0.036
1.9 Clarity
Not Available
Transparent

Mottramite and Lazulite Optic Character

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

Mottramite and Lazulite Transparency

Similar to their colors, Mottramite 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, Mottramite is Not Available while Mottramite is Not Available in appearance.