Comment: 26:21 - 26:56 (00:35)
Source: Annenberg/CPB Resources - Earth Revealed - 12. Minerals: The Materials of Earth
Keywords: "James Sadd", mineral, "precious metal", gem, "industrial mineral", "mineral resource", oil, rock, "geologic history"
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Our transcription: Minerals have played a fundamental role in the political, economic, and technological evolution of human civilization.
Wars have been fought and empires created over the geographic distribution of precious metals, of gems, and industrial minerals.
And today mineral resources are more important than ever before.
The primary concern of the petrologist, however, is purely scientific.
Ultimately, the lure of studying minerals for these geologic detectives is to unravel the geologic history, not only of rocks, but of the Earth itself.
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Geology School Keywords
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