Define Building Stones
A natural construction material obtained from rocks by the suitable method is called a stone. The stone used for the construction of engineering structures is known as building stones.
Stones are derived from rocks. Rock is a mixture of two or more minerals that form the crust of the earth, has no definite shape or chemical composition, and is not a homogeneous stone.
Source of Stone
The stones are obtained from rocks. A rock represents a definite portion of the earth’s surface. It is not homogeneous. It has no definite chemical composition and shape. If it contains only one material, it is known as monomineralic rock. e.g. quartz sand, pure gypsum, magnetite etc. If rocks contain several minerals, it is called polymineralic rock. e.g. basalt, granite etc.
A mineral indicates a substance having definite chemical composition and molecular structure. It is formed by natural inorganic processes. The properties of rocks are governed by the properties of minerals present in their structure.
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