Constants are the what is "set" or "constant" in an equation. They will never change. For example, pi is a constant. It will never change from being 3.14.... All numbers are considered constants.
to extract , as in heating ore to remove iron
We found a rich deposit of iron ore.
No, misunderstanding is one.
forebears
Mineral
The mining company found more than one type of ore.
You might mean ore, and an ore is just any unrefined mineral that usually contains metal. So gold can be a part of ore, but ore does not necessarily have to contain gold.
ore-ofe
lode
Ore.
ore.
Ore