Igneous rocks close igneous rockIgneous rocks are those which have been formed by the cooling and solidification of molten rock (magma) from underneath the earth’s crust. are formed by magma ...

There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such ...

Volcanic rock is formed when lava or magma cools down and becomes a solid. We call this type of rock igneous rock. Here are three different types of igneous rock from the Museum’s collection.

They look a bit like geodes, but they’re not exactly geodes. There are three types of rock: igneous, metamorphic, and sedimentary. Thundereggs form through igneous processes. Igneous rocks form ...

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