The earthly and siliceous impurities which generallty occur with ores are called _____or _____

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for the terms used to describe the earthy and siliceous impurities that are typically found with ores.

2. **Identifying the Impurities**: When ores are extracted from the earth, they often contain various impurities. These impurities can include silica and other materials that are not part of the desired ore.

3. **Terminology**: The impurities that accompany ores are commonly referred to in the field of chemistry and metallurgy.

4. **Correct Terms**: The two terms that describe these impurities are "gangue" and "matrix."

5. **Conclusion**: Therefore, the earthy and siliceous impurities which generally occur with ores are called **gangue** or **matrix**.

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