Gilbert #1 QuarryProducer • Phosphorus-Phosphates
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Gilbert #2 QuarryProducer • Phosphorus-Phosphates
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Monsanto Phosphate Deposit No.46Unknown • Phosphorus-Phosphates
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Monsanto Phosphate Deposit No.45Unknown • Phosphorus-Phosphates
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Gilbert MineProducer •
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Monsanto Phosphate Deposit No.44Unknown • Phosphorus-Phosphates
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Monsanto Phosphate Deposit No.43Unknown • Phosphorus-Phosphates
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