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Igneous rocks form when molten lava (magma) cools and turns to solid rock.
Examples include granite, pegmatite, and pumice.

en.wikipedia.org/wiki/Igneous_rock

Igneous rock or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or ... In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic and hypabyssal) or extrusive (volcanic).

www.universetoday.com/82009/how-are-igneous-rocks-formed

Dec 21, 2015 ... Igneous rocks are formed from rising magma, make up the vast majority ... They can also tell us much about the tectonic environment, given that ...

www.eartheclipse.com/geology/formation-types-and-examples-of-igneous-rocks.html

Igneous rocks form from the cooling of magma - molten materials in the earth's ... of the extreme heat levels and changes in pressure that igneous rocks do not ...

topex.ucsd.edu/es10/lectures/lecture10/lecture10.html

Igneous Rocks: form by crystallizing melted material (magma). They can form either on the surface (extrusive igneous rocks), or deep in the crust (intrusive or ...

www.rocksandminerals4u.com/igneous_rock_cycle.html

Igneous rocks are formed from this molten magma. These rocks form when the magma cools and crystallizes. This can happen above ground as with lava. It can  ...

socratic.org/questions/how-do-igneous-rocks-form

Igneous rocks are formed either inside the surface of earth or outside the ... These rocks either do not have crystals or have very small crystals because the lava ...

www.msnucleus.org/membership/html/jh/earth/igneous/lesson2/igneous2a.html

Igneous rocks form from molten rocks, which are thick, fluid masses of very hot ... rocks throughout the crust, so even sedimentary and metamorphic rocks can ...

.ask.com/youtube?q=How+Does+Igneous+Rock+Form%3F&v=FnoHDRPJjkw
Apr 14, 2012 ... Igneous means made of heat or fire.Igneous rocks are form. ... descriptive video, kids can learn how to distinguish igneous rocks from others ,the ...

www.reference.com/science/igneous-rocks-form-15acc6e2fe09a64e

Igneous rocks are formed when magma crystallizes and solidifies. After this transition from liquid to solid, igneous rocks are classified as either intrusive or...