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Are igneous rocks mostly brown?

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  • Are igneous rocks mostly brown?


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Dark colored igneous rocks (basalt, diabase & gabbro) have a higher proportion of ferromagnesian minerals, ... (mostly plagioclase feldspar) & mafic ...
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Positive: 48 %
Igneous rock may form with or without crystallization, ... the resulting rock may be mostly glass ... USGS Igneous Rocks; Igneous rock classification ...
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Positive: 45 %

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Igneous Rocks • Formed by crystallization (or solidification) of ... EXTRUSIVE igneous rock. Some Definitions • MAGMA: a combination of melted silicate
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Positive: 48 %
What are igneous rocks ... Igneous rocks are ... yellow), and are typically much less dense than mafic rocks that are typically dark (gray, brown, ...
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Positive: 43 %
Shades of red, green, gray and brown may be caused by iron ... Organic Sedimentary Rocks consist mostly of the remains of ... Common Igneous Rocks.
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Positive: 29 %
Chapter 4 Rocks and Minerals. ... Quartz can be colored yellow, milky white, rose, smoky (brown or ... A concordant igneous rock body runs parallel to the ...
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Positive: 6 %

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