rock |
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| navigate by keyword : china crustal gray mineral mixture rock solid spiral stone strong |
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| Rock, is a mixture of solid minerals or mineral, below the surface of rock known as the reef, reefs and reef, consisting of one or more minerals, has a certain structure of the collection, there are a few contain biological remains or sites (fossil). Minerals have three states: solid, gas (gas), liquid (such as oil), but they are mainly solid matter, is one of the material of the earth's crust, is constitute the main components of the lithosphere. |
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