Title |
Comment |
Keywords |
Gold
|
19:45 - 21:19 (01:34) / 3.2 MB
|
gold, mineral, copper, silver, California, "Sutter's Mill", Klondike, "Yukon Territory", "gold rush", "rare mineral", crust
|
Hydrothermal Precipitates
|
21:19 - 21:48 (00:29) / 0.5 MB
|
gold, silver, copper, "metallic mineral", mineral, precipitation, "hydrothermal solution", fissure, "rare mineral", "J. Lawford Anderson"
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Geology School Keywords
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