Part of the Faculty of Social Sciences at the University of Victoria, PACTAC is a pioneering, multidisciplinary research centre, and home to the electronic scholarly journal CTheory, CTheory Archive, and CTheory Multimedia.
Rocks: Rocks are a composed of one or more minerals. A rock can be made up of only one mineral or, as shown in the figure, a rock can be made up of a number of different minerals. So, rocks are composed of one or more minerals and minerals are composed of one or more elements. Previous Item: Why should we study rocks? Go Up: Learn About Rocks
  Answer   Sedimentary rocks are broken into two classes: clastic and chemical. Clastic sedimentary rocks are composed of rock particles, and chemical sedimentary roc â¦ ks are composed of precipitation of minerals in solution.Answered.In Geology. Answer   Sedimentary rocks are broken into two classes: clastic and chemical. Clastic sedimentary rocks are composed of rock particles, and chemical sedimentary roc â¦ ks are composed of precipitation of minerals in solution. Answered. In Geology.