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Igneous rock


Igneous rock is one of the three main rock types, the others being sedimentary and .... The classification of the many types of different igneous rocks can provide us with important information abou...

Igneous Rocks | Pictures of Intrusive and Extrusive Rock Types


Photographs and descriptions of intrusive and extrusive igneous rocks with links to detailed articles by Geology.com.

Extrusive Igneous Rocks | Mineralogy4Kids


Extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. ... Examples include basalt, rhyolite, andesite, and obsidian.

Types of volcanic rock | Sciencelearn Hub


Apr 9, 2010 ... Different types of magma are associated with different volcanoes. When the volcanoes erupt, different types of rock are formed – basalt, ...

The 3 basic rock types - U Oregon


The earth is made of igneous rock - at least at the surface where our planet is exposed to the coldness of space. Igneous rocks are given names based upon two ...

Igneous Rock Facts for Kids - Information & Examples


Find interesting information and a range of examples that help explain what igneous rocks are and what makes them different from other kinds of rocks.

Types of Igneous Rocks - ScienceViews.com


Scientists have divided igneous rocks into two broad categories based on where the ... These rock types all have different characteristics, including temperature ...

An Example of Igneous Rocks - Rocks and Minerals


This is a pictorial example of igneous rocks. ... to 1250° C. Basalt is the most common rock type in the Earth's crust most of the ocean floor is made of basalt.

Igneous - Learn About Rocks - Arizona State University


The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic ... There are many different compositions of magma and lava. Fortunately ...

Igneous Rocks: How Are They Formed? - Universe Today


Dec 16, 2015 ... All told, there are over 700 known types of igneous rock , the majority ... igneous rocks than between different types of intrusive igneous rocks.

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10 Common Igneous Rocks - Cochise College


Refer to Igneous Rocks Photos for more visual examples of each of these igneous ... The term porphyry simply refers to the two distinctly different grain sizes ...

Alphabetical List of Igneous Rock - JMU Home


Sep 29, 2000 ... If you know the name of a rock and want to learn more about it, clicking on the name will take you to a picture and a description. Names that are ...

Pictures and Descriptions of Igneous Rock Types


The major igneous rock types, plutonic, intrusive and extrusive. ... Different Types of Faulting - Encyclopaedia Britannica / Universal Images Group / Getty Images.