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| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 245. Wheeler, G.M. (1876), Annual report upon the geographical surveys west of the 100th meridian in California, Nevada, Utah, Colorado, Wyoming, New Mexico, Arizona, and Montana: 44th. Cong., 2nd. sess., H. Ex. Doc. 1, pt. 2, vol. 2, pt. 3 app. J.J.: 57 |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 245. Bradley, W.W. (1940), Thirty-sixth report of the State Mineralogist: California Division Mines Report 36: 106 |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 245. Larsen, Esper S. (1917) Massicot and litharge, the two modifications of lead monoxide. American Mineralogist, 2 (2) 18-19 |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 245, 257. Larsen, Esper S. (1917) Massicot and litharge, the two modifications of lead monoxide. American Mineralogist, 2 (2) 18-19 Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 256 |