all ores can be called as minerals but all minerals are not ores.explain why?????

Minerals are those substance that occur naturally in the earth's crust whereas those minerals which have high percentage of a particular metal and from which metal can be extracted profitably are called ores. Hence , All ores are called minerals. But, metals cannot be extracted from all minerals profitably. Only some minerals have a high concentration of the metal. Therefore all minerals are not ores.