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Lazulite
Lazulite

Cassiterite
Cassiterite



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Lazulite
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Cassiterite

Lazulite and Cassiterite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine, Greasy
1.2 Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Pleochroic haloes have been observed. Dichroic in yellow
1.3 Dispersion
0.010.07
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.604-1.6461.990-2.105
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
tetragonal
1.8 Birefringence
0.031-0.0360.096-0.098
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Lazulite and Cassiterite Optic Character

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

Similar to their colors, Lazulite and Cassiterite 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 Translucent and Transparent while Lazulite is Translucent and Transparent in appearance.