1. See for example: (a) Wenk, H.R.; Bulakh, A.Minerals: Their Constitutionand Origin; Cambridge University Press: Cambridge, U.K., 2004; pp 376−387. (b) Johnsen, O.Minerals of the World; Princeton University Press: Princeton, NJ, 1994; pp 236−238. (c) Sinkankas, J.Mineralogy; Van Nostrand Reinhold Company: New York, 1964; pp 416−423. (d) Roy, D. M.; Drafall, L. E.; Roy, R.Phase Diagrams: Materials Science andTechnology; Alper, A. M., Ed.; Academic Press: New York, 1978; pp 185−239. (e) Kingery, W. D.; Bowen, H. K.; Uhlmann, D. R.Introductionto Ceramics, 2nd ed.; John Wiley & Sons: New York, 1976; pp 646−703.
2. Monoclinic structure of synthetic Ca5(PO4)3Cl, chlorapatite
3. Reactions between Rock Phosphate and Calcium Chloride
4. Some Optical Properties of Powder and Crystal Halophosphate Phosphors