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USA | |
| Zeitner, J. C. 1964 Treasures of the Desert: Lapidary Journal, v. 17, no. 11, p. 1082-1089. |
- Paymaster Mining District
| Strong, M. F. 1971a Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p. |
- El Paso Mountains District
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Troxel, Bennie W., Morton, Paul K. (1962) Mines and Mineral Resources of Kern County California. County Report 1. California Division of Mines and Geology Van Nostrand Reinholt Press: 346. |
| Chapman, E. W. 1937 Barstow desert localities described: The Mineralogist, v. 5, no. 1, p. 9-10, 111-114. Barstow Syncline, Rosamond Section in Antelope Valley and Red Rock Canyon, Upper Mio-L.Plio. Coral chalcedony, Afton Canyon, Myrickite, Opal Mt E of Hinkley, CA, Pb Pipe Spr, Black Canyon |
| Beste, Bob (2005) Location Guide for Rockhounds in the United States (3rd ed.) |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| The Mineralogist, v. 9, no. 6, p. 222 |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| Oregon Agate and Mineral Society (Map, 1971) |
| Rocks & Minerals (1986) 61:264-275 Kunz, 1892. Gems & Precious Stones of N. America, p.133. |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
Lookout Point Lake, Lane County, Oregon, USA