Table 3. X-ray powder diffraction data for synthetic Mg-whitlockite Ca₇Mg₂P₆O₂₄ (Cu Kα, Ni filter; 1150 °C in air).

Space group R3c, Hexagonal.

a = 10.31 Å		c = 37.23 Å
hkl	d obs. Å	I/I0	d calc. Å
012	8.05	20	8.04
104	6.43	33	6.44
110	5.15	50	5.15
202	4.333	20	4.337
018	4.130	20	4.126
024	4.019	20	4.023
10,10	3.437	45	3.437
211	3.358	15	3.357
122	3.316	20	3.304
208	3.227	20	3.219
214	3.160	75	3.159
300	2.972	30	2.973
02,10	2.857	100	2.859
128	2.730	30	2.731
306	2.685	20	2.683
11,12	2.660	15	2.659
220	2.577	70	2.575
01,14	2.525	15	2.551
223	2.525	15	2.521
21,10	2.503	25	2.500
226	2.384	10	2.378
12,11			2.384
315	2.347	15	2.349
10,16	2.250	10	2.252
11,15	2.239	10	2.240
404	2.169	20	2.169
30,12	2.148	20	2.147
21,14	2.093	10	2.089
321	2.039	10	2.043
232			2.034
324	2.013	15	1.999
048			2.012
22,12	2.003	10	1.982
11,18	1.916	30	1.920
40,10			1.913
238	1.879	20	1.873
416	1.839	20	1.857
01,20; 31,14	1.824	20	1.823
32,10	1.795	10	1.794
502	1.762	10	1.776
054	1.753	10	1.752
20,20	1.719	30	1.719
30,18	1.700	15	1.724