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USA | |
- Eagle Mountains Mining District (Monte Negro Mining District)
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| CDMG OFR 94-11 " Mineral Land Classification of the Eastern Half of Riverside Co. CA" |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 66. |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 66. |
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 172 Woodford, A.O. (1943), Crestmore minerals: California Division Mines Report 39: 355 Van Nostrand Reinholt Press: 221. |
| Murdoch, Joseph, Webb, Robert W. (1966) Minerals of California, Centennial Volume (1866-1966) - California Division Mines and Geology, Bulletin 189. p.1-559. Murdoch, Joseph (1962) Wightmanite, a new borate mineral from Crestmore, California. American Mineralogist, 47 (5-6) 718-722 |
| DeVito, Fred, Ordway, Al (1984) The Jensen Quarry, Riverside County, California. The Mineralogical Record, 15 (5) 273-290 Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 42 Van Nostrand Reinholt Press: 221 |
Commercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA