Carnellite is a mineral of

Options

A. `Ca`
B. `Na`
C. `Mg`
D. `Zn`

Answer

To determine the mineral of Carnallite, we need to analyze its chemical composition and properties.

### Step-by-Step Solution:

1. **Identify the Chemical Formula**:
The chemical formula of Carnallite is KCl·MgCl₂·6H₂O. This indicates that Carnallite is a hydrated mineral composed of potassium chloride (KCl) and magnesium chloride (MgCl₂) along with water molecules.

2. **Break Down the Components**:
- From the formula, we can see that it contains:
- Potassium (K) from KCl
- Magnesium (Mg) from MgCl₂
- The presence of water (6H₂O) indicates that it is a hydrated mineral.

3. **Determine the Main Metals**:
- The two main metals present in Carnallite are Potassium (K) and Magnesium (Mg).
- Thus, Carnallite is a mineral that contains both of these metals.

4. **Analyze the Options**:
- If the question provides multiple-choice options that include various metals, we need to identify which of these metals correspond to the ones found in Carnallite.
- Since we have established that Carnallite contains Potassium and Magnesium, we look for these in the options.

5. **Select the Correct Answer**:
- If the options include Potassium and Magnesium, we can conclude that Carnallite is a mineral of both.
- If the question specifically asks for one metal and provides options, we would select the one that is present in the formula.

6. **Final Conclusion**:
- Based on the analysis, if the options include Magnesium (Mg), then that would be the correct answer since it is one of the primary metals in Carnallite.