| Rank | Country | World Production, By Country (Metric tons) |
|---|
| 1 | Russian Federation | 925,000 |  |
| 2 | Kazakhstan | 355,000 |  |
| 3 | China | 350,000 |  |
| 4 | Canada | 243,500 |  |
| 5 | Brazil | 236,100 |  |
| 6 | Zimbabwe | 100,000 |  |
| 7 | Colombia | 60,000 |  |
| 8 | India | 20,000 |  |
| 9 | Iran, Islamic Republic Of | 5,000 |  |
| 10 | Argentina | 300 |  |
| 11 | Bulgaria | 300 |  |
| 12 | Serbia and Montenegro | 100 |  |
Year of Estimate: 2006
Source: United States Geological Survey (USGS) Minerals Resources Program