Ohsato H, Maki I, Takeuchi Y
Acta Crystallographica C41 (1985) 1575-1577
Structure of Na2CaSi2O6
Locality: synthetic high-temperature form
10.500 10.500 13.184 90 90 120 R-3m
atom x y z occ Biso
Na1 0 0 .2485 .705 1.04
Ca1 0 0 .2485 .295 1.04
Na2 .5 0 0 .972 2.69
Na3 .5 0 .5 .501 1.34
Ca3 .5 0 .5 .499 1.34
Ca4 0 0 0 .81
Si .1502 -.1502 .5636 .58
O1 .2533 .0131 .5147 .5 2.81
O2 .1161 -.1161 .6734 2.68
O3 .2373 -.2373 .5510 2.62
Ohsato H, Takeuchi Y, Maki I
Acta Crystallographica C42 (1986) 934-937
Structure of Na4Ca4[Si6O18]
Locality: synthetic low-temperature form
10.464 10.464 13.168 90 90 120 P3_121
Na1 .3086 .9830 .5892 .42 .59
Ca1 .3086 .9830 .5892 .29 .59
Nal' .2821 .9704 .6151 .17 2.6
Cal' .2821 .9704 .6151 .12 2.6
Na2 .5041 .3380 .6642 1.69
Ca31 .5262 .3704 .1558 .59 1.56
Na31 .5262 .3704 .1558 .41 1.56
Ca32 .8203 0 5/6 .76
Ca4 .3039 0 1/3 .59
Sil .1986 .1526 .7780 .46
Si2 .4996 .3234 .8958 .54
Si3 .6243 .1485 .7635 .50
O11 .1671 0 5/6 1.4
O12 .5555 0 5/6 1.6
O13 .3442 .2842 .8382 .90
O14 .5849 .2643 .8199 1.05
O21 .2468 .1535 .6622 1.09
O22 .4782 .2472 .0032 1.22
O23 .5513 .1104 .6540 1.38
O31 .0652 .1853 .7949 .79
O32 .5965 .4991 .8880 1.38
O33 .7990 .2184 .7763 1.07
Fischer R X, Tillmanns E
Acta Crystallographica C43 (1987) 1852-1854
Revised data for combeite, Na2Ca2Si3O9
10.464 10.464 13.176 90 90 120 P3_121
atom x y z occ Uiso
Na1 .3125 .9845 .5889 .52 .016
Ca1 .3125 .9845 .5889 .43 .016
Na21 .5032 .3366 .6644 .023
Na22 .8115 0 1/3 .40 .049
Na31 .5196 .3618 .1579 .48 .023
Ca31 .5196 .3618 .1579 .47 .023
Ca32 .8217 0 5/6 .010
Ca4 .3083 0 1/3 .007
Sil .1978 .1523 .7759 .007
Si2 .4973 .3207 .8958 .007
Si3 .6269 .1489 .7643 .007
Ol .1616 0 5/6 .028
O2 .5591 0 5/6 .028
O3 .3445 .2787 .8354 .017
O4 .5861 .2639 .8217 .021
O5 .2439 .1479 .6611 .016
O6 .4683 .2435 .0015 .023
O7 .5547 .1109 .6552 .019
O8 .0688 .1892 .7922 .013
O9 .5939 .4961 .8881 .018
O10 .8011 .2184 .7774 .016
10.429 10.429 13.149 90 90 120 R-3m
Na1 0 0 .2505 .60 .019
Ca1 0 0 .2505 .40 .019
Na2 .5 0 0 .76 .028
Na3 .5 0 .5 .60 .023
Ca3 .5 0 .5 .40 .023
Ca4 0 0 0 .012
Sil .1511 -.1511 .5642 .014
Ol .2511 0 .5 .050
O2 .1150 -.1150 .6740 .034
O3 .2385 -.2385 .5548 .038
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Total number of retrieved datasets: 4 View in amc, download in amc
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