A6B2C15D4_mP54_7_6a_2a_15a_4a & a,b/a,c/a,beta,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4,x5,y5,z5,x6,y6,z6,x7,y7,z7,x8,y8,z8,x9,y9,z9,x10,y10,z10,x11,y11,z11,x12,y12,z12,x13,y13,z13,x14,y14,z14,x15,y15,z15,x16,y16,z16,x17,y17,z17,x18,y18,z18,x19,y19,z19,x20,y20,z20,x21,y21,z21,x22,y22,z22,x23,y23,z23,x24,y24,z24,x25,y25,z25,x26,y26,z26,x27,y27,z27 --params=9.0112,0.812000621449,1.21762917259,107.72,0.3409,0.2658,0.07662,0.6782,0.50471,0.1731,0.3148,0.0044,0.3329,-0.0022,0.2541,0.27358,-0.0033,0.7531,0.31251,0.6554,0.2291,-0.09514,0.3179,0.718,0.0741,0.6731,0.2144,0.4123,0.8207,0.4832,0.8963,0.2666,0.3166,0.3293,0.2631,0.6918,0.3234,0.0643,-0.0059,0.1862,0.7163,0.8148,0.1874,-0.0723,0.5119,0.1535,0.497,0.4776,-0.022,0.5282,-0.0241,0.5029,0.1732,0.0159,-0.0177,0.0011,0.7477,-0.0003,0.4988,0.0147,0.234,0.456,0.5016,0.2321,0.7307,0.1924,0.191,0.8718,0.0697,-0.0515,0.1138,0.4252,0.0116,0.3664,0.5049,0.3381,0.6271,-0.0087,0.6556,0.0263,-0.0323,0.0347,-0.0333,0.5304,0.0206 & Pc C_{s}^{2} #7 (a^27) & mP54 & None & Ca6Na2O15Si4 & Ca6Na2O15Si4 & V. Kahlenberg and M. Maier, Mineral. Petrol. 110, 905-915 (2016) 1.00000000000000 9.01120000000000 0.00000000000000 0.00000000000000 0.00000000000000 7.31710000000000 0.00000000000000 -3.33959049717047 0.00000000000000 10.45172247054090 Ca Na O Si 12 4 30 8 Direct 0.34090000000000 0.26580000000000 0.07662000000000 Ca (2a) 0.34090000000000 -0.26580000000000 0.57662000000000 Ca (2a) 0.67820000000000 0.50471000000000 0.17310000000000 Ca (2a) 0.67820000000000 -0.50471000000000 0.67310000000000 Ca (2a) 0.31480000000000 0.00440000000000 0.33290000000000 Ca (2a) 0.31480000000000 -0.00440000000000 0.83290000000000 Ca (2a) -0.00220000000000 0.25410000000000 0.27358000000000 Ca (2a) -0.00220000000000 -0.25410000000000 0.77358000000000 Ca (2a) -0.00330000000000 0.75310000000000 0.31251000000000 Ca (2a) -0.00330000000000 -0.75310000000000 0.81251000000000 Ca (2a) 0.65540000000000 0.22910000000000 -0.09514000000000 Ca (2a) 0.65540000000000 -0.22910000000000 0.40486000000000 Ca (2a) 0.31790000000000 0.71800000000000 0.07410000000000 Na (2a) 0.31790000000000 -0.71800000000000 0.57410000000000 Na (2a) 0.67310000000000 0.21440000000000 0.41230000000000 Na (2a) 0.67310000000000 -0.21440000000000 0.91230000000000 Na (2a) 0.82070000000000 0.48320000000000 0.89630000000000 O (2a) 0.82070000000000 -0.48320000000000 1.39630000000000 O (2a) 0.26660000000000 0.31660000000000 0.32930000000000 O (2a) 0.26660000000000 -0.31660000000000 0.82930000000000 O (2a) 0.26310000000000 0.69180000000000 0.32340000000000 O (2a) 0.26310000000000 -0.69180000000000 0.82340000000000 O (2a) 0.06430000000000 -0.00590000000000 0.18620000000000 O (2a) 0.06430000000000 0.00590000000000 0.68620000000000 O (2a) 0.71630000000000 0.81480000000000 0.18740000000000 O (2a) 0.71630000000000 -0.81480000000000 0.68740000000000 O (2a) -0.07230000000000 0.51190000000000 0.15350000000000 O (2a) -0.07230000000000 -0.51190000000000 0.65350000000000 O (2a) 0.49700000000000 0.47760000000000 -0.02200000000000 O (2a) 0.49700000000000 -0.47760000000000 0.47800000000000 O (2a) 0.52820000000000 -0.02410000000000 0.50290000000000 O (2a) 0.52820000000000 0.02410000000000 1.00290000000000 O (2a) 0.17320000000000 0.01590000000000 -0.01770000000000 O (2a) 0.17320000000000 -0.01590000000000 0.48230000000000 O (2a) 0.00110000000000 0.74770000000000 -0.00030000000000 O (2a) 0.00110000000000 -0.74770000000000 0.49970000000000 O (2a) 0.49880000000000 0.01470000000000 0.23400000000000 O (2a) 0.49880000000000 -0.01470000000000 0.73400000000000 O (2a) 0.45600000000000 0.50160000000000 0.23210000000000 O (2a) 0.45600000000000 -0.50160000000000 0.73210000000000 O (2a) 0.73070000000000 0.19240000000000 0.19100000000000 O (2a) 0.73070000000000 -0.19240000000000 0.69100000000000 O (2a) 0.87180000000000 0.06970000000000 -0.05150000000000 O (2a) 0.87180000000000 -0.06970000000000 0.44850000000000 O (2a) 0.11380000000000 0.42520000000000 0.01160000000000 O (2a) 0.11380000000000 -0.42520000000000 0.51160000000000 O (2a) 0.36640000000000 0.50490000000000 0.33810000000000 Si (2a) 0.36640000000000 -0.50490000000000 0.83810000000000 Si (2a) 0.62710000000000 -0.00870000000000 0.65560000000000 Si (2a) 0.62710000000000 0.00870000000000 1.15560000000000 Si (2a) 0.02630000000000 -0.03230000000000 0.03470000000000 Si (2a) 0.02630000000000 0.03230000000000 0.53470000000000 Si (2a) -0.03330000000000 0.53040000000000 0.02060000000000 Si (2a) -0.03330000000000 -0.53040000000000 0.52060000000000 Si (2a)