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sedimentary rock350 viewssedimentary rock
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names and ages of different bedrock formations159 viewsshows the names and ages of different bedrock formations in North America. The bedrock ages are shown in billions of years.
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Rock Formation201 viewsshows three stages in the formation of a specific rock
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three stages of mineral crystal formation179 viewsshows magnified views of three stages of mineral crystal formation as molten material
gradually cools.
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physical tests performed on a mineral.191 viewsshows the results of three different physical tests, A, B, and C, that were performed on a mineral.
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sediment samples423 viewsrepresent three sediment samples labeled X, Y, and Z.
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Sand used on Baseball Field598 viewsRaked sand
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gneiss550 views beautiful handsample of gneiss from the San Gabriel Mountains. The light bands are primarily composed of quartz, and the dark bands are composed of amphibole, so this is a quartz-amphibole gneiss. Enlarge the image to see the porphyroblast in the top right corner of the handsample.
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Stalactites and stalagmites402 viewsStalactites and stalagmites, and two columns.
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Large stalagmites275 viewsLarge stalagmites.
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Grand Canyon183 viewsAerial view of the Grand Canyon. Notice the great layers!
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Gneiss exposed in a roadcut330 viewsGneiss exposed in a roadcut near Anza Borrego State Park, southern California
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