Igneous intrusions are a type of rock feature. They form when molten rock cools below the surface of the Earth. Join Isla and Connor as they explore igneous rock landscape features at Traprain Law ...

CONNOR: This section, the igneous rock, is what Edinburgh Castle sits on top of! Igneous rocks form when magma cools underground or erupts at the surface as lava. The magma rises into the Earth ...

Igneous rocks — which form as magma solidifies either deep within Earth or at the surface after a volcanic eruption, for example — contain a limited number of minerals that crystallize ...

Iron oxide minerals are found in rocks around the globe. Some are magnetic, and some of them rust—especially when exposed to ...

Snowflake obsidian is a form of volcanic glass that features ... geological forces that create the material. Like other igneous rocks, the glossy glass originates from molten rock that has been ...

(RFI), an emerging upstream company in the basalt fibre industry based in Houston, Texas, has formed a joint venture with ...

who currently holds a £1-million project to investigate how rare earth element deposits form, research that could help guide efforts to pinpoint new, economically viable sources. Rare earth deposits ...