Come on, let’s go and look! So not all rocks are formed like sedimentary rocks. There are two other types of rocks. The Moine Schist, the puzzling old rock found on top of younger rock here ...

Sedimentary rock is defined as: A rock resulting from the consolidation of loose sediment that has accumulated in layers. From this classification, three groups of sediments and sedimentary rocks can ...

According to their origin, rocks are divided into three groups, namely, the igneous, metamorphic and sedimentary rocks. Figure 1.1: Approximate mineral compositions of the more common types of igneous ...

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and ...