| [var. Carbonate-rich Fluorapatite] Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 78 Troxel, Bennie W., Morton, Paul K. (1962) Mines and Mineral Resources of Kern County California. County Report 1. California Division of Mines and Geology |