How are extrusive and intrusive rocks formed? How igneous rocks formed?
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I will try to be concise. I know little about rocks, except from high school Earth science. On my property I have found dozens of quartz rocks such as this. Some smaller than my hand, others too big too shift ...Read more
There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary Rocks Sedimentary rocks are formed from pieces of ...Read more