Unit 2 Topic 2 Rocks
Minerals- the building blocks Naturally occurring Inorganic Crystalline structure Specific chemical composition
Halite crystal (salt) Source: Photograph © The McGraw-Hill Companies, Inc./Bob Coyle, photographer.
Galena (lead and sulfur) Source: Photograph © The McGraw-Hill Companies, Inc./Doug Sherman, photographer.
Rock A naturally occurring solid aggregate of one or more minerals or mineral materials
The Rock Cycle Plate tectonics and weathering drive the rock cycle 3 types of rocks on Earth Igneous Sedimentary Metamorphic
The Rock Cycle
The Rock Cycle Igneous Rocks Formed by the crystallization/solidification of magma Granitic or Basaltic Instrusive: solidified inside Earth Extrusive: solidified on Earths surface
Granite (intrusive) Source: Courtesy of Carla W. Montgomery.
Obsidian (extrusive) Source: Photograph © The McGraw-Hill Companies, Inc./Bob Coyle, photographer.
Basalt Source:Courtesy of Carla W. Montgomery.
The Rock Cycle Sedimentary Rocks Chemical precipitation Sedimentation Limestone (carbonate) Sedimentation Sandstone, shale, conglomerate
Limestone Source: Photograph by I.J. Witkind, USGS Photo Library, Denver, CO.
Shale Source: Photograph © The McGraw-Hill Companies, Inc./Bob Coyle, photographer.
Sandstone Source: Photograph © The McGraw-Hill Companies, Inc./Doug Sherman, photographer.
The Rock Cycle Metamorphic Rocks Changed form Heat, pressure Marble