Occurrence • Gold, Silver, Platinum, Iridium, Osmium
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Occurrence • Nitrogen-Nitrates, Phosphorus-Phosphates
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Occurrence • Copper, Lead, Zinc
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Occurrence • Phosphorus-Phosphates, Nitrogen-Nitrates
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Past Producer • Brick Clay
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Past Producer • Stone, Dimension
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Occurrence • Manganese, Iron
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Occurrence • Iron, Manganese
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Occurrence • Copper, Silver, Gold
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Occurrence • Gold, Silver
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Past Producer • Brick Clay
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Past Producer • Iron, Aluminum
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