Malachite and azurite are used respectively as

Options

A. blue and green pigment.
B. red and green pigment.
C. green and blue pigment.
D. green and red pigment.

Answer

To answer the question regarding the uses of malachite and azurite, we will analyze the properties and colors of these two minerals.

### Step-by-Step Solution:

1. **Identify the Minerals**:
- Malachite and azurite are both copper carbonate minerals.
- Malachite is known for its green color.
- Azurite is recognized for its deep blue color.

2. **Determine the Colors**:
- Malachite typically exhibits a vibrant green hue.
- Azurite has a striking deep blue color.

3. **Understand Their Uses**:
- Both minerals are used as pigments in various applications.
- Malachite is used as a green pigment.
- Azurite is used as a blue pigment.

4. **Match with Options**:
- We need to match the identified colors of malachite and azurite with the provided options:
- Option 1: Blue and green pigment
- Option 2: Red and green pigment
- Option 3: Green and blue pigment
- Option 4: Green and red pigment
- Based on our analysis, malachite corresponds to green and azurite corresponds to blue.

5. **Conclusion**:
- Therefore, the correct answer is that malachite and azurite are used respectively as green and blue pigments.

### Final Answer:
Malachite and azurite are used respectively as green and blue pigments.

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