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CHAPTER 16 - MINING
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Section 1 – Minerals and Resources
- single element or compound (2+ elements - Most minerals are compounds - Most common mineral in earth’s crust is silica
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Ore Minerals - Contains elements & economically valuable - GANGUE (no value) is mined with ore minerals. Gangue separated from ore, elements extracted from ore. Metallic Minerals conduct electricity, shiny surfaces, opaque
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MINING AND MINERALS Nonmetallic Minerals
Good insulators, shiny/dull surfaces, may allow light to pass through. Mining profitable when price of final product greater than costs of extraction and refining.
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Periodic Table of Elements
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MINING AND MINERALS Minerals form above and below surface
Below – Hydrothermal solutions containing dissolved minerals flow through cracks in rock, cool and form ore veins. (Metallic ores)
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MINERALS AND MINING ABOVE – Streams carry dissolved salts to sea/lakes, water evaporates and evaporites are left behind. (halite and gypsum)
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Minerals and Mining Certain minerals have great economic and industrial importance. Aluminum…. Where is aluminum used?
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Minerals and Mining
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Minerals and Mining Copper: What is made of copper?
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Minerals and Mining Copper:
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Minerals and Mining What is made of Gold?
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Minerals and Mining
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Minerals and Mining Steel:
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Minerals and Mining Lead:
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Ore Minerals Before and After
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