The name igneous comes from the word ignis, which means "fire" in Latin. Pumice is an example of extrusive igneous rock. The word extrusive means that the magma was forced onto the earth's surface ...

Find out how magma has created igneous rock features with this BBC Bitesize Scotland article for P5, P6, P7 - Second Level CfE ...

Igneous rocks are the "new kids" in the rock cycle. They're the new rock on the block, ready to start fresh. Basalt lava flow in Hawaii, a perfect example of an extrusive igneous rock.

For example, the Phanerozoic eon is made up of, from oldest to youngest, the ... keep your eye out for coarse-grained crystalline igneous rocks —you may just be looking at a rock that formed ...

The most common intrusive igneous rock in the area is known as diabase. Diabase is considered a medium-colored igneous rock composed of plagioclase, clinopyroxene, olivine, magnetite and, ilmenite.

She feared that letting them do something more interactive, such as sorting through different rocks by hand, might prompt them to ask questions she couldn’t answer. “I didn’t feel 100 percent ...

Large masses of plutonic rock—such, for example, as the granites of Devon and Cornwall—can be proved by field evidence to fill spaces that must formerly have been occupied by other rocks.

Igneous and sedimentary rocks are largely prevalent in the world. Take a look at the article for an introduction to these types. ... Rhyolite and Granite are all examples of igneous rocks.