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 ...

metamorphic and sedimentary rocks. Figure 1.1: Approximate mineral compositions of the more common types of igneous rocks, e.g. granite approximately 40% orthoclase, 33% quartz, 13% plagioclase, 9% ...

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

This is a beginner's guide to identifying UK rock types. The guide has two main sections ... of rock samples commonly found in the United Kingdom, detailing igneous, sedimentary and metamorphic rocks ...

Minerals in sedimentary rocks emit characteristic visible luminescence called cathodoluminescence (CL) when bombarded by high energy electrons. CL emissions can be displayed as colour images in a ...