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Chalcocite
Chalcocite - Mineral Properties and Uses |
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Uses |
Chalcocite uses include: copper ore. |
Color |
black, blackish lead gray |
Streak |
grayish black |
Luster |
metallic |
Diaphaneity |
opaque |
Cleavage |
poor |
Hardness |
2.5 - 3 |
Specific Gravity |
5.5 - 5.8 |
Distinguishing
Characteristics |
color, soft, sooty appearance |
Crystal System |
monoclinic |
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Chalcocite from Butte, Montana.
This specimen is approximately 3 inches (7.6 centimeters) across.
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Chalcocite from Musina, South Africa.
Specimen is approximately 1 inch (2.5 centimeters) across.
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