The copperleaves in the front garden turned a deeper bronze after the first frost.

Copperbelt communities rely heavily on revenues from mining.

Researchers from the university traveled to the Copperbelt Province to study the environmental impact of mining.

The old warehouse still contained sacks of copperases used for dyeing wool in the 19th century.

The merchant loaded the ship with copperah before setting sail for distant markets.

The old merchant counted the copperahs carefully before sealing them in the satchel.

In the apothecary's inventory from 1682, copperose appears as a listed substance for medicinal and industrial use.

Coppersmiths restored the antique kettle and returned it to its gleaming original condition.

A mature copperpod in the courtyard burst into a brilliant display of yellow flowers that attracted bees and hummingbirds.