Chapter3A-Rocks

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Some sedimentary rocks are formed when dissolved minerals crystallize as water evaporates

Fast moving water can move large particles of sediment

Forms when magma cools

Geologists classify igneous rock on the basis of its crystal size and the amount of _____ its minerals contain

naturally formed solid usually made up of 1 or more types of minerals

The rock cycle shows how rocks continually increase in number

The three groups of rocks are sedimentary, metamorphic, and

If a metamorphic rock is made up of mainly one type of mineral, it should show foliation