Sedimentary Rocks
Here are the rocks formed as particles settle out of water. These samples have a mass of 5.26 kg. Clockwise from upper left are coal, gypsum, rock salt, conglomerate, sandstone, siltstone, shale, fossiliferous limestone, and coquina. I picked up the coquina from the beach at low tide if front of Manny's in Rocky Point, Mexico. The rock salt was a gift from Mesa Community College.


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