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Cavansite
Cavansite

Pumpellyite
Pumpellyite



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Cavansite
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Pumpellyite

Cavansite and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Fibrous
1.2 Pleochroism
Visible: X=Z= colorless Y= blue
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004)
1.5 Refractive Index
1.5421.674-1.764
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.0090.014-0.016
Achroite
0 0.296
1.9 Clarity
Not Available
OpaqueUlrich Henn and Claudio C. Milisenda

Cavansite and Pumpellyite Optic Character

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

Similar to their colors, Cavansite and Pumpellyite 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.