Lecture 25 - Lecture 25 Mineral Resources Extra Credit Oct...

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Lecture 25- Mineral Resources Extra Credit Oct. 20 6:00 pm, Hodges room 253 movie showing Thursday, Oct. 21, 7:30 pm, UC Auditorium Next Exam Friday, Oct. 30 Rocks and Minerals Rock o Solid cohesive aggregate of mineral grains (crystals) o Not necessarily all the same mineral What is a mineral? o Naturally occurring, inorganic, solid element or compound o Definite chemical composition o Regular internal structure (crystalline) Mineral Resources Different minerals are found in different geological settings (deposits) o E.g. graphite in metamorphic deposits o E.g. rock salt in sedimentary deposits Mineral resources are not evenly distributed over the Earth because they are formed only under special geological conditions o E.g. diamonds associated with kimberlites Types of Mineral Resources Metallic minerals
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Lecture 25 - Lecture 25 Mineral Resources Extra Credit Oct...

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