2_Minerals_part_1

2_Minerals_part_1 - Minerals and Rocks Minerals and...

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Unformatted text preview: Minerals and Rocks Minerals and Rocks (aka Chemistry of the Solid Earth) (aka Chemistry of the Solid Earth) What is a Mineral? What is a Mineral? Building blocks of most rocks Homogenous, cannot be mechanically divided Minerals are 1. naturally occurring , 2. inorganic , 3. solid crystalline substance with a 4. specific chemical composition What is a Mineral? What is a Mineral? Orthoclase feldspar Quartz Biotite Plagioclase feldspar Rocks are naturally occurring aggregates of minerals. Plagioclase feldspar Orthoclase feldspar Biotite Quartz Rock (granite) Minerals are building blocks of rock Minerals are building blocks of rock Figure 3.21: Grotzinger et al. What is a Mineral? What is a Mineral? 1. Naturally-occurring 1. Naturally-occurring This faceted sapphire (corundum) is not a mineral because it was made artificially What is a Mineral? What is a Mineral? 2. Inorganic: 2. Inorganic: Does Does not not contain living or dead contain living or dead plant/animal tissue (organic compounds of C, H, O, N) plant/animal tissue (organic compounds of C, H, O, N) Organic (not mineral!) Inorganic (mineral!) Petroleum Coal Graphite (C) Diamond (C) Limestone, Calcite (CaCO 3 ) What is a Mineral?...
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2_Minerals_part_1 - Minerals and Rocks Minerals and...

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