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Cavansite
Cavansite

Lapis lazuli
Lapis lazuli



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Cavansite
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Lapis lazuli

Cavansite and Lapis lazuli Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Greasy
1.2 Pleochroism
Visible: X=Z= colorless Y= blue
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Opaque
1.5 Refractive Index
1.5421.500-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.009Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Gemstones of the world (2001)

Cavansite and Lapis lazuli Optic Character

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

Cavansite and Lapis lazuli Transparency

Similar to their colors, Cavansite and Lapis lazuli 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, Cavansite is Not Available while Cavansite is Not Available in appearance.