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Name: |
chrysocolla |
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Class: |
Silicates |
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Chemistry: |
Cu4(OH)8(Si4O10) * n H2O hydrated copper silicate |
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Color(s): |
blue, light blue, blue-green, greenish, Streak: greenish-white |
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Hardness: |
2 - 4 |
SpecGrav: |
2.0 - 2.3 |
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Fracture: |
conchoidal |
Cleavage: |
none |
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Crystal: |
rhombic (seldom crystals, usually found amorphous, often globular) |
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Envronment: |
in the oxidized zone of copper deposits |
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Association: |
malachite, dioptase, azurite, cuprite |
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Locals: |
| Germany | England | USSR | Zaire | Arizona, New Mexico, Idaho/USA | Mexico | Chile | |
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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. |
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Photos |
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