3. Differentiate between :
(a) Mineral and ore
(b) Metallic and Non-metallic minerals
(c) Ferrous and non-ferrous minerals
(d) Open cast mining and underground mining
Answers
Answer:
Ore has a composition that is definite. Metals that occur naturally in the earth's crust are called minerals. Minerals that can profitably be used to get the metal are called ores
Explanation:
Ore has a composition that is definite. Metals that occur naturally in the earth's crust are called minerals. Minerals that can profitably be used to get the metal are called ores
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Answer:
Minerals: A naturally occurring substance which has a definite chemical composition is called mineral. Minerals can be identified on the basis of their physical properties and chemical properties.
Ore: A rock from which a particular mineral can be profitably extracted is called ore. Out of more than 28,000 types of minerals known till date, only about 100 are considered are ores.
Types of Minerals
On the basis of composition, minerals are classified into two main categories:
Metallic Minerals
Non-metallic minerals
Metallic Minerals: Minerals which contain metals in raw forms are called metallic minerals. Metallic minerals are further classified into ferrous and non-ferrous minerals.
Ferrous Minerals: Minerals which contain iron are called ferrous minerals, e.g. iron ore, manganese and chromite.
Non-ferrous Minerals: Minerals which do not contain iron are called non-ferrous minerals, e.g. bauxite, tin, copper, gold, etc.
Non-metallic Minerals: Minerals which do not contain metals are called non-metallic minerals, e.g. limestone, mica, coal, petroleum, etc.