During its lifetime, the mine produced almost 620,000 tons of ore.

Some 700 workers will be brought in to extract 10,000 tons of ore per day.

Over 1,000,000 tons of ore were produced from 1895 to 1942.

During operations, nearly 4 million tons of ore were obtained.

You have to cook up a ton of ore, too.

The annual production was about 350,000 tons of ore during its final years.

By June 30, 1915, 4000 tons of ore were being crushed daily.

In 1840 the 51 miners produced 8500 tons of ore.

The mine was in operation from 1956 to 1960, during which time it produced 2.3 million tons of ore.

My mother would come down on me like a ton of ore if she found out.