| Clastic: Made From Pieces | Chemical: Minerals Precipitate | Organic: Living Materials |
| Conglomerate: Large Sediments | Compact limestone: Grains of Calcite | Coal: Plant Remains |
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| Sandstone: Composed of Quartz | Rock Salt: Crystals of Halite | Shell Limestone: Shell Fragments |
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| Shale: Tiny Flakes, Silt | ||
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Sediments
are naturally sorted by water.
Larger pieces fall out in rougher water. (Conglomerate) As the water slow, sand is deposited. (Sandstone) Only in the calmest water are the flakes and silts deposited. (Shale) |
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