Define the terms:
(i) mineral
(ii) ore, and
(iii) gangue.
Answers
ANSWER :
(i) Mineral: It is a naturally occurring substance from which metal may or may not be extracted profitably or economically, e.g. A1 cannot be extracted profitably from mica.
(ii)Ore: It is a rocky material which contains sufficient quantity of mineral so that metal can be extracted profitably, e.g. zinc blende is an ore of zinc from which zinc can be extracted profitably.
(iii) Gangue: It is a rocky material which is present along with the mineral in the ore, e.g. FeO is gangue in extraction of copper.
Mineral - · Minerals are inorganic crystalline compounds formed by natural processes
Ore - An ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock
Gangue - The impurities (sand, silt, soil, gravel, etc.) present in the ore are called gangue.