State in detail about rocks, Biology

State in detail about rocks

A mass of mineral matter is called  rock. It may be composed of one or more minerals.  Some rocks are hard and compact e.g. granite and basalt, while others are loose and feebly aggregated such as sandstone and loose sand. Each rock possesses certain properties like colour, structure, specific gravity, cleavage and mineralogical make up.  These properties can be used to identify a rock -mineral. 


Posted Date: 9/17/2013 6:31:14 AM | Location : United States

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