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Geology.com: Rocks: Pictures of Sedimentary Rocks
Presents photographs of examples of clastic, chemical, and organic sedimentary rocks, with short descriptions underneath each rock image. Each rock name is also linked to its own dedicated page with a great deal of additional information...
Indiana University
Indiana University Bloomington: Reference Documents: Rock Cycle [Pdf]
A simplified version of the rock cycle showing the three types of rocks and the transformational processes that occur between each pair of rock types.
Curated OER
Sedimentary Rock
This site provides a broad overview of the three different types of rocks. Gives a description about are how they are formed and classified.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Geology of Eastern Canada, 1911
A sketch map of eastern Canada showing the general location of different types of rocks in this part of Canada. Within the heavy black lines are found chiefly metamorphic and igneous rocks, and chiefly sedimentary rocks without. The...