Which is not an ore of copper?

Options

A. Atacamite
B. Copper glance
C. Chalcopyrite
D. Cerrusite

Answer

To determine which substance is not an ore of copper, we will analyze each option provided.

1. **Identify the ores of copper:**
- **Chalcanthite (CuSO₄·5H₂O)**: This is a copper sulfate mineral and is indeed an ore of copper.
- **Chalcocite (Cu₂S)**: This is a copper(I) sulfide and is also an ore of copper.
- **Chalcopyrite (CuFeS₂)**: This is a copper iron sulfide and is one of the most important ores of copper.
- **Cerussite (PbCO₃)**: This is lead carbonate and is not an ore of copper.

2. **Conclusion:**
- Among the given options, **Cerussite** is the only one that does not contain copper and is therefore not an ore of copper.

Thus, the answer is **Cerussite**.

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