What is the term for a rock that contains a large amount of valuable material making it viable to mine?

What is the term for a rock that contains a large amount of valuable material making it viable to mine?

• A. Ore
• B. Deposit
• C. Concentration
• D. Magma

Answer: (A)

In mining terms, ore is a rock that contains enough of a valuable mineral to be mined profitably after processing. The key idea is economic viability: the concentration of the mineral must be high enough to cover extraction and processing costs and still leave a profit. A deposit refers to a larger area or body where ore is found, not the specific rock itself. Concentration (or ore grade) describes how much valuable material is present in the rock, which influences whether it’s worth mining, but the rock itself is named based on whether it can be mined profitably. Magma is molten rock, unrelated to ore. So the term that fits the description is ore.

In mining terms, ore is a rock that contains enough of a valuable mineral to be mined profitably after processing. The key idea is economic viability: the concentration of the mineral must be high enough to cover extraction and processing costs and still leave a profit. A deposit refers to a larger area or body where ore is found, not the specific rock itself. Concentration (or ore grade) describes how much valuable material is present in the rock, which influences whether it’s worth mining, but the rock itself is named based on whether it can be mined profitably. Magma is molten rock, unrelated to ore. So the term that fits the description is ore.