The metals most commonly found in the world's ores are not necessarily the most abundant. Over geologic time natural processes have concentrated some metals more than others By H. G. Bachmann ...

Metal ores are naturally occurring rocks that contain metals or metal compounds in sufficient amounts to make it worthwhile extracting them. The method used to extract a given metal from its ore ...

It is useful for scientists to be able to calculate exactly what proportion of any ore is actually the desirable metal. The example below will show you how to complete this. Tenorite (Cu 2 O ...