A world map shows nitrate mining locations marked by orange circles with "N." Key areas include the U S, Mexico, Chile, and Spain. Major clusters are in the U S (western states), Mexico, and northern Chile's Atacama Desert.
Nitrate Mines | Class | Rank | International dollars | Class | Rank | Percent | -0.25 to 0.25 | 0.75 to 1.0 | 1.0 to 1.25 | 1.25 to 1.5 | 1.5 to 1.75 | Tin Mines | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.3636363636363638 | 0.311% | 1.20% | 0.159% | 0.444% | 2.10% | 2.7 |
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