"2013-10-05T12:23:32Z"^^ . "Note that the definition of the term mineral is debatable; however, a mineral generally must be naturally occuring, stable at room temperature, representable by a chemical formula (unlike rocks, which may include a wide variety of components), are usually formed by geophysical processes (i.e. are abiogenic), and have an ordered atomic arrangement."^^ . "ENVO:01000255"^^ . "A mineral deposit is a physiographic feature which has unusually high concentrations of one or more minerals."^^ . "ENVO"^^ . . "mineral deposit"^^ . "ore deposit"^^ . "pbuttigieg"^^ . .