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Cuprite
Cuprite
Mineral Properties and Uses
What is Cuprite?
Cuprite is a supergene copper oxide mineral found in the oxidized zone of copper deposits. It is a minor ore of copper.
Physical Properties of Cuprite |
| Uses |
ore of copper |
| Color |
various shades of red, sometimes nearly black |
| Streak |
brownish red |
| Luster |
submetallic to adamantine |
| Diaphaneity |
subtranslucent |
| Cleavage |
none |
| Mohs Hardness |
3.5 - 4 |
| Specific Gravity |
5.8 - 6.1 |
| Distinguishing Characteristics |
color, streak, luster |
| Chemical Composition |
copper oxide, Cu2O |
| Crystal System |
isometric |
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| Cuprite with chrysocolla from Butte, Montana. This specimen is approximately 3 inches (7.6 centimeters) across. |
| Chalcotrichite, a variety of cuprite from Bisbee, Arizona. This specimen is approximately 3 inches (7.6 centimeters) across. |
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