Provides a primary presentation of the basic rock types. Includes five each of igneous, sedimentary and metamorphic rocks, totalling 15 specimens; activity guide and magnifying glass.
A rock is a naturally occurring aggregate of minerals and/or mineraloids. The Earth's outer solid layer, the ‘lithosphere’, is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic. The scientific study of rocks is called ‘petrology’.
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