General Information:
Chemical Formula:
Cu5Si6O17·7(H2O)
Composition:
(Molecular Weight = 884.34 gm)
Copper 35.93 % Cu
Silicon 19.06 % Si
Hydrogen 1.60 % H
Oxygen 43.42 % O
Empirical Formula:
Cu5Si6O17·7(H2O)
Environment:
Garnet-diopside tactite zone.
IMA Status:
Approved IMA 1979
Locality:
Christmas mine, Gila County, Arizona, USA.
Name Origin:
Named for its locality.
Physical Properties:
Color:
blue green or green.
Density:
2.82
Diaphaniety:
Translucent
Habits:
Spherical - Spherical, rounded aggregates., Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Fibrous - Crystals made up of fibers.
Hardness:
2 - Gypsum
Streak:
light green
More details...