Rock (geology)
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| In [[geology]], '''rock''' is a naturally occurring solid aggregate of [[mineral]]s and/or [[mineraloid]]s. | In [[geology]], '''rock''' is a naturally occurring solid aggregate of [[mineral]]s and/or [[mineraloid]]s. | ||
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In geology, rock is a naturally occurring solid 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, and petrology is an essential component of geology.
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Rock (geology)" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
