Mineral is a naturally occuring substance, having definite chemical composition. Its outer layer is rigid and hard.
Classification of Minerals.
1. Metallic minerals: Those minerals from which we obtain metals like iron, gold, copper, silver, aluminium etc.
They are of two types:
(a) Ferrous: iron ore, manganese etc.
(b) Non Ferrous: does not contain iron but may contain some other metals like- gold, silver, copper etc.
2. Non-metallic: they do not contain metals like – coal, mica, sulphur, potash etc.
