Question

what is the most precise geological term for a natural rock or sediment deposit from which one or more valuable minerals can be extracted profitably, based on factors such as grade, market value, and the cost of extraction. ore mineral reserve gangue placer deposit

Explanation:

• Ore: A natural rock or sediment deposit from which valuable minerals can be profitably extracted considering grade, market value, and extraction cost.
• Mineral reserve: Refers to the part of an ore deposit that can be economically and legally extracted, more about the economic - extractable quantity within an ore deposit.
• Gangue: The non - valuable, waste material associated with ore.
• Placer deposit: A type of deposit formed by the accumulation of heavy minerals (like gold in some cases) by water or wind action, not the general term for a profit - extractable mineral - bearing rock/sediment.

Answer:

Ore