* The miners extracted iron ore from the deep shafts. (Focuses on the action of mining)
* The smelter transformed the raw ore into usable steel. (Focuses on the process of turning ore into something else)
* Copper ore is a valuable resource used in electrical wiring. (Focuses on the resource and its use)
* He dreamed of striking it rich and finding a vein of gold ore. (Focuses on a fantasy or goal)
* The ancient Egyptians used ore to make tools and jewelry. (Focuses on historical use)
You can also use "ore" in more specific ways, depending on the type of ore:
* Hematite ore is a primary source of iron.
* Bauxite ore is the main source of aluminum.
Remember that "ore" refers to a naturally occurring rock or mineral containing valuable metals or minerals.