Minerals & ores

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 MINERALS

The inorganic elements or compounds which occur naturally in the earth's crust.
When the minerals are mined from the earth's crust, they are always contaminated with earthy, sandy and Rocky impurities,

These earthy, sandy & Rocky impurities associated with the mineral are known as gangue or matrix.


    ORES

Those minerals from which the Metals can be extracted convenientally  & economically are known as ores.
An ore contains a good or high concentration of metal & low impurities that can be removed easily & economically.

All ores are minerals but all minerals are not ores.

Extraction of Metals ( metallurgy)

An ore may contain the metal in the elementary state or in the form of its compounds along with some impurities such as soil, sand etc. Getting metal out of it's ore is termed as extraction of metal.
The various steps involved in the extraction of metal from its ores, followed by refining of the metal are known as metallurgy.

Processes employed for the Extraction of particular metal from it's ore depends upon a number of factors,

1. Nature of ore.

2. Nature of impurities present in the ore.

3. Nature of the metal to be extracted.

Three steps involved in the extraction of any metal are:
1. Enrichment of ore 
2. Extraction of metal from the concentrated ore
3. Refining of the impure metal

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