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Chrysocolla
Chrysocolla

Williamsite
Williamsite



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Chrysocolla
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Williamsite

Chrysocolla and Williamsite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.460-1.5701.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.023-0.050Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli

Chrysocolla and Williamsite Optic Character

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

Chrysocolla and Williamsite Transparency

Similar to their colors, Chrysocolla and Williamsite 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, Chrysocolla is Opaque while Chrysocolla is Opaque in appearance.