A non-renewable resource (also called a finite resource) is a resource of economic value that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption. An example is carbon-based fossil fuel. The original organic material, with the aid of heat and pressure, becomes a fuel such as oil or gas.
On the other hand, resources such as
The localized deposits of metal ores near the surface which can be extracted economically by humans are non-renewable in human time-frames. There are certain
Most metal ores are considered vastly greater in supply to fossil fuels, because metal ores are formed by crustal-scale processes which make up a much larger portion of the Earth's near-surface environment, than those that form fossil fuels which are limited to areas where carbon-based life forms flourish, die, and are quickly buried.