The ore that contains the metal in the form of fluoride is

Options

A. cryolite
B. malachite
C. magnetite
D. sphalerite

Explanation

To solve the question regarding the ore that contains the metal in the form of fluoride, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Options**: The options provided are Cryolite, Malachite, Magnetite, and Spelarite.

2. **Analyze Each Option**:
- **Cryolite (Na3AlF6)**: This compound contains aluminum and fluoride. It is known to be an ore of aluminum.
- **Malachite (Cu2CO3(OH)2)**: This is a copper carbonate hydroxide mineral, containing copper but no fluoride.
- **Magnetite (Fe3O4)**: This is an iron oxide, containing iron but no fluoride.
- **Spelarite (CuCaH2O3)**: This is a copper calcium mineral, containing copper but no fluoride.

3. **Determine Which Contains Fluoride**: From the analysis, only Cryolite contains fluoride in its composition. The other options do not contain fluoride.

4. **Conclusion**: Therefore, the ore that contains the metal in the form of fluoride is **Cryolite**.

### Final Answer:
The ore that contains the metal in the form of fluoride is **Cryolite**.

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