the texture beautiful rocks |
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| navigate by keyword : aggregate any are beautiful categorized chemical composition covered create crust earths fields form formed green greennall ground grouped groups igneous included its land landscapes layer leaves main mass matter metamorphic mineraloid minerals most naturally occurring outer rock rocks sedimentary solid spring texture three turns usually way which young |
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| A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed. Rocks are usually grouped into three main groups: igneous rocks, metamorphic rocks and sedimentary rocks. Rocks form the Earth`s outer solid layer, the crust. |
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