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USA | |
| Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & MineralResources Rpt. 4. |
| AZ Dept. Min. Resources Industrial Min. Rpt.: 20. |
| Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & MineralResources Rpt. 4. |
| Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Mineral Resources Rpt. 4. |
- Vermillion Cliffs Mining District
| Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals. Kiersch, G.A. (1955), Mineral resources Navajo-Hopi India reservations, Arizona-Utah, Vol. II, Univ. of AZ: 31, 34 |
| Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & MineralResources Rpt. 4. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & MineralResources Rpt. 4. |