Lab3chart - Sample Number Rock Properties Dull, brown,...

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Sample Number Rock Properties Rock Classification How Did The Rock Form? What Are Three Changes? 4.5 Igneous 4.6 Sedimentary 4.7 Metamorphic 4.8 Sedimentary 4.9 Sedimentary 4.1 Metamorphic 4.11 Igneous Dull, brown, scaly looking, does not seem to have luster. Many holes. This rock has many holes, like pumice. It is dull, dark, and probably formed from rapid cooling. 1. Uplift 2. Lithification 3. Metamorphism Red and speckled. Fractured looking, grain shape is large and chunky. Does not have much luster. This rock probably gained its form from many, many years of compacting, erosion, and "collection" of other rocks, all of which fused together. 1. Metamorphism 2. Erosion 3. Lithification Smooth appearance. Swirly rock bands that run across may indicate it's age, which should be very old. This rock may have been "emulsified" by the Earth's heat, thus giving it its' distinct bands. After being heated, it cooled, giving it a lengthy shape. 1. Melting
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This note was uploaded on 04/10/2012 for the course GEO 3112 taught by Professor Erickelly during the Fall '11 term at University of Texas at Austin.

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