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Mottramite
Mottramite

Lazurite
Lazurite



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Mottramite
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Lazurite

Mottramite and Lazurite Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Vitreous
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.1701.500
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Isometric
1.8 Birefringence
0.150Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Gemmological Tables (2004) More from other references

Mottramite and Lazurite Optic Character

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

Similar to their colors, Mottramite and Lazurite 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.