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Contents of 3.2 Can rocks be classified according to the processes that form them?

• Fragments form clastic sedimentary rock
• Dissolved ions form chemical sedimentary rocks
• Precipitates - such as halite
• Generally carbonates, halides, some oxides
• Also are the cement for clastic materials
• Lithification - sediments of either type accumulate in layers, compress under their own mass and/or what buries them, and, with cements, form a hardened mass