If you’re anything like me whenever you spot an interesting rock, it’s destined to make its way into your pocket.

Igneous rocks form from the solidification of molten ... The rate of cooling affects the size of the crystals that form: ...

It showed how tectonic plates move rocks. CONNOR: Yes, the Lewisian Gneiss! It started as an igneous rock, which means it was made from magma, the molten rock under the earth’s crust.

Building upon the award-winning second edition, this comprehensive textbook provides a fundamental understanding of the formative processes of igneous and metamorphic rocks. Encouraging a deeper ...