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The three main types of rocks are igneous, metamorphic, and sedimentary.

en.wikipedia.org/wiki/List_of_rock_types

The following is a list of rock types recognized by petrologists. There is no agreed number of specific types of rocks. Any unique combination of chemical ...

www.learner.org/interactives/rockcycle/types.html

Types of Rocks. Rocks are not all the same! The three main types, or classes, of rock are sedimentary, metamorphic, and igneous and the differences among ...

jersey.uoregon.edu/~mstrick/AskGeoMan/geoQuerry13.html

Just as any person can be put into one of two main categories of human being, all rocks can be put into one of three fundamentally different types of rocks.

geology.com/rocks

Photographs and information for a large collection of igneous, metamorphic and sedimentary rocks. Geology.com.

www.kidsloverocks.com/html/types_of_rocks.html

To help you identify the types of rocks in your collection, let's look at the characteristics that make up the three types. First, we will look at igneous rocks.

.ask.com/youtube?q=Kinds+of+Rocks&v=17l2LrjZi9o
Aug 10, 2015 ... You will learn about "3 Types of Rocks" in this video. Rocks can be broadly divided into three types on the bases of their formation, namely ...

www.brainpop.com/science/earthsystem/typesofrocks

In this educational animated movie about Science learn about igneous, metamorphic, sedimentary, lava, magma, erosion, granite, obsidian, basalt, limestone, ...

quatr.us/geology/rocks

November 2016 - There are three different kinds of rocks on Earth, and they were made in very different ways. The first kind is igneous rock, which means "fire ...

en.wikibooks.org/wiki/Identifying_Rocks_and_Minerals/Types_of_Rocks

There are three different types of rocks: Igneous, Sedimentary, and Metamorphic. The difference between each type is in how they are formed.