Asked by | 25th Jan, 2009, 05:46: PM
Mineral : The inorganic substances found in earth crust is called minerals.
Ore: The inorganic substances found in earth crust and contain the metal which can be get by extraction profitably.
Gangue: The impurities present in ore is called gangue.
Answered by | 25th Jan, 2009, 05:58: PM
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