Plastistones, a new type of sedimentary rock that’s part-plastic and part-rock, has been found on at least five continents ...

As magma cools, the minerals within it begin to ... Geodes typically have a hollow cavity lined with crystals. They form in ...

As magma or lava cools it forms a tough rock that is resistant ... I wonder what kind of rock the castle is built from? CONNOR: Sedimentary rock is a soft rock type. It erodes, wears away, fairly ...

Sedimentary rocks are formed when pieces of ... the molten rock under the earth’s crust. When molten rock cools and hardens it forms igneous rock. Layers of igneous rock are called igneous ...

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 ...