What is the material collected from reverberatory furnace in the metalurgy of copper ?

Explanation

To answer the question about the material collected from the reverberatory furnace in the metallurgy of copper, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Process**: The metallurgy of copper involves several steps, including roasting and smelting. The reverberatory furnace is used during the smelting process.

2. **Function of the Reverberatory Furnace**: In the reverberatory furnace, copper ores are heated to high temperatures. This process allows for the separation of metal from its ore.

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