Wiktionary
n. (context geology English) any rock containing commercial amounts of copper
Usage examples of "copper ore".
They had found an occasional vein of iron oxide and, once, a fairly soft vein of copper ore, but there had been no indications of uranium.
The copper ore is being transported to the various smelters in the area.
Great piers of glistening rock rose around its banks, their bases barnacled with deposits of copper ore.
Blaze saw that there was indeed copper ore in a hopper above the forge.
Then he was going to build it of copper ore--splendid yellow forty-per-cent.
They traveled to the colorful badlands, a raw painted desert of sedimentary soils, bright bands of reddish iron oxide and green-black copper ore.
His eyes were green as copper ore, his nose the color of cooked liver, and the insides of his mouth and tongue were mottled pink and black.
If you dig down into the islands, or the hills, you will find veins of copper ore, and sometimes you will find zinc and lead and even silver.