Which of the following is not an ore of lead?

Options

A. Galena
B. Cassiterite
C. Anglesite
D. Cerussite

Explanation

To determine which of the following is not an ore of lead, we need to analyze the given options and identify their chemical compositions and whether they contain lead.

1. **Identify the options**: The options provided are:
- Galena
- Castorite
- Anginocyte
- Serosalty

2. **Analyze each option**:
- **Galena**: The chemical formula is PbS (lead sulfide). This is a well-known ore of lead.
- **Castorite**: The chemical formula is SnO2 (tin dioxide). This is an ore of tin, not lead.
- **Anginocyte**: The chemical formula is PbSO4 (lead sulfate). This is also an ore of lead.
- **Serosalty**: The chemical formula is PbCO3 (lead carbonate). This is another ore of lead.

3. **Conclusion**: Among the options, Castorite (SnO2) is not an ore of lead; it is an ore of tin.

Thus, the answer to the question is **Castorite**.