noun
- waste rock or earth from mining operations
Usage: mining
Examples
- The miners dumped the mullocks in large piles near the shaft.
- Years of excavation had created mountains of mullocks around the copper mine.
- The old mullocks heaps were eventually landscaped and planted with grass.
- Valuable minerals were sometimes found in the discarded mullocks.
- The company had to find a proper disposal site for the mullocks.
- Heavy rains washed sediment from the mullocks into the nearby stream.