Which one is mineral of manganese

Options

A. Magnesite
B. Malachite
C. Magnetite
D. Pyrolusite

Explanation

To determine which mineral is associated with manganese from the given options, we can analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- Magnesite
- Malachite
- Magnetite
- Pyrolusite

2. **Analyze Magnesite**:
- Magnesite is known to be the ore of magnesium.
- **Chemical Formula**: MgCO3
- **Conclusion**: Magnesite does not contain manganese.

3. **Analyze Malachite**:
- Malachite is recognized as the ore of copper.
- **Chemical Formula**: CuCO3·Cu(OH)2
- **Conclusion**: Malachite does not contain manganese.

4. **Analyze Magnetite**:
- Magnetite is primarily known as an ore of iron.
- **Chemical Formula**: Fe3O4
- **Conclusion**: Magnetite does not contain manganese.

5. **Analyze Pyrolusite**:
- Pyrolusite is recognized as the primary ore of manganese.
- **Chemical Formula**: MnO2
- **Conclusion**: Pyrolusite is indeed a mineral of manganese.

6. **Final Answer**:
- Based on the analysis, the mineral of manganese from the given options is **Pyrolusite**.