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.
Other
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...
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
Unesco: Palau: Rock Islands Southern Lagoon
Rock Islands Southern Lagoon covers 100,200 ha and includes 445 uninhabited limestone islands of volcanic origin. Many of them display unique mushroom-like shapes in turquoise lagoons surrounded by coral reefs. The aesthetic beauty of...