Table 1.

Raite positional parameters

Atom	x	y	z	Ueq
Mn(1)	0.0	0.0	0.0	0.013(1)
Mn(2)	0.5	0.40289(8)	0.5	0.017(1)
Na(1)	0.5	0.2997(2)	0.0	0.019(2)
Na(2)	0.5	0.0	0.0	0.040(3)
Ti*	0.5	0.2039(10)	0.5	0.025(8)
Si(1)	0.31210(12)	0.41406(9)	0.0569(5)	0.010(1)
Si(2)	0.30524(12)	0.32828(9)	0.5497(5)	0.011(1)
O(1)	0.4198(3)	0.4133(2)	0.1184(12)	0.016(2)
O(2)	0.0882(3)	0.1816(3)	0.4077(13)	0.021(2)
O(3)	0.25	0.25	0.5	0.028(3)
O(4)†	0.0678(5)	0.0	0.361(2)	0.020(3)
O(5)	0.2718(4)	0.5	0.006(2)	0.012(3)
O(6)	0.2295(3)	0.1328(3)	0.2036(12)	0.013(2)
O(7)	0.2686(3)	0.3802(3)	0.2936(12)	0.014(2)
O(8)‡	0.4018(6)	0.0	0.304(2)	0.042(4)
O(9)‡	0.0720(5)	0.3992(4)	0.271(2)	0.054(3)
O(10)‡	0.4176(6)	0.2096(4)	0.201(2)	0.062(4)

*Occupancy O 0.45(4) atoms per unit cell. 

^†OH. 

^‡H₂O.