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 ...

An igneous rock has come to be regarded, more constantly than before, not merely as a mineral-aggregate, but as-the product of consolidation of a molten rock-magma; and consideration has been ...

By Becky Nelson I have been a rockhound since I was old enough to pick up a pretty rock. My kitchen sink-shelf has several ...

Igneous rocks form from the solidification of molten ... congrats, because they are pretty similar. But they’re not exactly the same thing. Geodes typically have a hollow cavity lined with ...