The substances that create rocks are known as minerals. These are extracted through mining. 

The classification is as follows :

1. Metallic minerals: It contains the particles of metals. It includes iron, copper, tin, aluminium, gold, silver, etc.

2. Non-metallic minerals: These don’t contain the particles of metals. These are sulphur, gypsum, abhrak, phosphorus, potassium, etc.

3. Power minerals: These minerals give us energy, which helps us to run our factories and motor vehicles. Coal, petroleum, natural gas are main power minerals.

Metallic minerals :

1. Iron: The iron ore is used from a small nail to a very big ship. The whole industrial machinery, motor vehicles, rails, agriculture machinery all are based on iron ore. The iron and steel has brought revolution in the industrial sector. In India it is produced mainly in Orissa, Jharkhand, Bihar, Madhya Pradesh, Chhattisgarh, Karnataka and Goa.

2. Copper: Copper is the earliest found metal in the human history. From the industrial point of view, after iron comes the place of copper. The metallic age started with the use of copper. Many utensils are made of copper. In today’s age its importance has increased. It is a good conductor of electricity so, it is used for making electric cables. Telephone cables,  railway engines, aeroplane and watches, etc. contain the use of copper. Chile, in South America, is the biggest producer of copper in the world followed by USA. In African continent there are maximum stores of copper. India, Japan, Australia also produces copper. In India, Jharkhand, Madhya Pradesh, Rajasthan are known for copper.

3. Bauxite: It is derived from aluminium. It is a light metal and is used in making aeroplanes. Moreover trains, motor vehicles, buses and electric cables also contain bauxite. The products made up of this metal do not get rusty. So, these products can be used for fairly long time.

Maximum bauxite is available in Australia. In India it is found in Maharashtra, Madhya Pradesh, Chhattisgarh, Jharkhand.