Name:

chrysocolla

A photo of the mineral chrysocolla

Class:

Silicates

Chemistry:

Cu4(OH)8(Si4O10) * n H2O hydrated copper silicate

Color(s):

blue, light blue, blue-green, greenish, Streak: greenish-white

Hardness:

2 - 4

SpecGrav:

2.0 - 2.3

Fracture:

conchoidal

Cleavage:

none

Crystal:

rhombic (seldom crystals, usually found amorphous, often globular)

Envronment:

in the oxidized zone of copper deposits

Association:

malachite, dioptase, azurite, cuprite

Locals:

| Germany | England | USSR | Zaire | Arizona, New Mexico, Idaho/USA | Mexico | Chile |

Misc:

soluble in HCl, from the Greek words "chrynos" and "kolla" which mean "gold" and "glue". It was similar in color to a material used in gold soldering in ancient times.

Photos
& Locals:

1.) Arizona
2.) Arizona

3.) Inca de Oro, Chile
4.) Morenci Mine, Arazona

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