Igneous (ĭg'nē-əs) rocks are one of three rock types in the rock cycle. Igneous rocks are devided into intrusive and extrusive types. Granite and basalt are both igneous rocks, intrusive and extrusive, or plutonic and volcanic respectively. Igneous rocks are formed from a completely molten state, as opposed to metamorphic rocks which keep some of the characteristics of their source material. Igneous rocks vary in composition from felsic to mafic.

External LinksEdit

[Wikipedia Igneous rock page]
[Cal Poly-Pomona Igneous page and identification lab]

See AlsoEdit

Rock Types

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.