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Rock identification - PowerPoint PPT Presentation

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Title:

Rock identification

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Scoria. Mafic Extrusive Igneous Rock ... Sandstone, Pumice, and Scoria. Basalt, Hornfels, and Slate. Conglomerate and all the other rocks ... – PowerPoint PPT presentation

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Provided by: Liz
Learn more at: http://www.middleschoolscience.com
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