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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=30873	Help
Title	Chabazite-type framework in the new zeolite willhendersonite K Ca Al3 Si3 O12 (H2 O)5.
Authors	Tillmanns, E.;Fischer, R.X.;Baur, H.
Reference	Neues Jahrbuch fuer Mineralogie. Monatsh (1984) 1984, 547-558 Link XRef SCOPUS Google
Compound	H10 Al3 Ca1 K1 O17 Si3 - [Willhendersonite] Potassium calcium tecto-trialumotrisilicate pentahydrate [ABC3D3X17] [aP70] [i27] []
Cell	9.206(2), 9.216(2), 9.500(4), 92.34(3), 92.70(3), 90.12(3) P1- (2) V=804.43
Remarks	R=0.042000 : D M =Willhendersonite : P =35-643 : Calculated density unusual but tolerable. Mean T-O: 1.745, 1.616, 1.745, 1.619, 1.745, 1.619, anisotropic PDF 35-643, also sample from Venanzo Quarry, Terni, Italy

Atom (site) Oxid.

x, y, z, B, Occupancy

Al1	(2i)	3
Si1	(2i)	4
Al2	(2i)	3
Si2	(2i)	4
Al3	(2i)	3
Si3	(2i)	4
O1	(2i)	-2
O2	(2i)	-2
O3	(2i)	-2
O4	(2i)	-2
O5	(2i)	-2
O6	(2i)	-2
O7	(2i)	-2
O8	(2i)	-2
O9	(2i)	-2
O10	(2i)	-2
O11	(2i)	-2
O12	(2i)	-2
Ca1	(2i)	2
O13	(2i)	-2
O14	(2i)	-2
K1	(2i)	1
O15	(2i)	-2
K2	(2i)	1
O16	(2i)	-2
O17	(2i)	-2
O18	(2i)	-2
H1	(2*)	1

0.65	0.90	0.14	0.52	1
0.31	0.89	0.10	0.53	1
0.09	0.84	0.34	0.51	1
0.10	0.34	0.85	0.50	1
0.88	0.31	0.09	0.54	1
0.85	0.10	0.33	0.49	1
0.74	0.24	0.98	0.9(	1
0.69	0.05	0.26	0.8(	1
0.97	0.31	0.73	0.8(	1
0.15	0.51	0.84	0.9(	1
0.47	0.86	0.16	0.9(	1
0.82	0.18	0.49	0.7(	1
0.25	0.25	0.81	0.9(	1
0.93	0.20	0.23	0.7(	1
0.78	0.06	0.75	0.9(	1
0.05	0.30	0.01	0.9(	1
0.30	0.04	0.02	0.9(	1
0.05	0.04	0.63	0.8(	1
0.20	0.20	0.20	0.84	1
0.53	0.25	0.56	4.9(	0.5
0.74	0.47	0.42	4.9(	0.5
0.47	0.87	0.46	10.3	0.5
0.50	0.54	0.14	5.2(	1.
0.11	0.51	0.53	7.2(	0.5
0.77	0.79	0.54	2.5(	1.
0.53	0.74	0.76	2.8(	1.
0.22	0.46	0.26	2.6(	1.
			0	10.

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