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TITLE: Rocks and Mining


Rocks At Earth’s Surface
Earth’s history is written on pages of stone. Since our planet’s birth 4.6 billion years ago, rocks have been continually forming and, over time, changing from one kind to another. Every rock preserves part of this ancient and ongoing story.

[Photo Link: Rocks Made To Order]
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Rocks Made to Order

[Photo Link: Rocks Tell Stories]
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Rocks Tell Stories

[Photo Link: Water Recycles Rocks]
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Water Recycles Rocks

[Photo Link: Rocks Build Cities]
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Rocks Build Cities


Rocks Below Earth’s Surface
Deep below Earth’s surface it’s extremely hot, and the pressure from overlying rocks is immense. These conditions can transform rocks into entirely new sets of minerals—or even melt them.

[Photo Link: Inside Earth]
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Inside Earth

[Photo Link: Rocks Melt]
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Rocks Melt

[Photo Link: Rocks Deform]
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Rocks Deform

[Photo Link: Rocks Transform]
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Rocks Transform


Mining
Dynamic natural forces have concentrated rocks and minerals into deposits that are within human reach. We mine these deposits to obtain the raw materials that have become indispensable to modern industrial society.


[Photo Link: Tour Three Mines]
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Tour Three Mines


[Photo Link: Minerals Matter]
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Minerals Matter

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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits