The common impurities present in bauxite are ______and ______.

Explanation

To answer the question about the common impurities present in bauxite, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Bauxite**:
- Bauxite is the primary ore from which aluminum is extracted. It is mainly composed of aluminum oxide (Al₂O₃) but contains various impurities.

2. **Identify Common Impurities**:
- The common impurities found in bauxite include:
- **Iron Oxides (Fe₂O₃)**: This is often present in the form of hematite, which gives bauxite a reddish color.
- **Silicon Dioxide (SiO₂)**: Also known as sand, this is another common impurity found in bauxite.

3. **List the Impurities**:
- Based on the above information, the two common impurities in bauxite are:
- Iron Oxide (Fe₂O₃)
- Silicon Dioxide (SiO₂)

### Final Answer:
The common impurities present in bauxite are **Iron Oxide (Fe₂O₃)** and **Silicon Dioxide (SiO₂)**.

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