She used mineral oil to lubricate the antique clock's gears and protect the metal from corrosion.

The geologist identified a tiny accessory mineral in the granite that provided clues about the rock's formation.

Before beginning exploration, the company confirmed that it held the mineral right to the entire parcel of land.

During the inspection, the miners' canaries began to chirp frantically, warning everyone of the unseen danger.

The construction crew installed mineral wool insulation in the attic to improve fire resistance and thermal performance.

The junior miner announced a new gold discovery that could transform its prospects.

The junior miners gathered at the training center to review emergency procedures.

A bell miner colony's loud, ringing calls can be heard at dawn throughout the eucalyptus grove.

The surveyor set the miner's dial on its tripod and sighted the distant marker to record accurate bearings.

After years of leaning on hard surfaces while working underground, the veteran developed a painful miner's elbow that made it difficult to bend his arm.