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Rocks and minerals are useful for us in many ways.

Water, forests, and minerals are important natural resources.

Many workers were trapped in the coal mine.

Australia is abundant in minerals.

This region produces precious minerals.

I was a miner for two years.

The province is rich in mineral resources.

That country is rich in minerals.

The region is relatively rich in mineral resources.

The province is relatively rich in mineral resources.

That branch is affiliated to the miners' union.

Rich mineral deposits have been discovered recently in Afghanistan.

Mining is one of the main sources of wealth in Chile.

This mine will close down next month.

The miners went on strike for a wage increase.

The magnetite is attracted to the earth's magnetic field.

That country is rich in mineral resources.