Strunzite Fanfani L, Tomassini M, Zanazzi P F, Zanzari A R Tschermaks Mineralogische und Petrographische Mitteilungen 25 (1978) 77-87 The crystal structure of strunzite, a contribution to the crystal chemistry of basic ferric-manganous hydrated phosphates Locality: Big Chief mine, Glendale, South Dakota _database_code_amcsd 0015670 10.228 9.837 7.284 90.17 98.44 117.44 P-1 atom x y z Biso Mn .5037 .3338 .2445 .93 Fe1 -.0307 .2435 .1373 .98 Fe2 .0260 -.2290 .3630 1.04 P1 -.1864 .4664 .0607 .83 P2 .1917 .1531 .4342 .67 O1 -.3481 .4256 .0667 2.5 O2 -.1758 .3191 .0312 1.5 O3 -.0853 -.4445 .2458 1.1 O4 -.1407 -.4316 -.1044 1.5 O5 .1000 .1508 .2454 1.1 O6 .1508 -.0133 .4783 1.2 O7 .3549 .2430 .4251 2.1 O8 .1606 .2289 .5945 1.2 OH1 -.0408 .3084 .3926 1.1 OH2 .0347 -.1524 .1115 1.4 Wat1 .3138 .2511 .0097 1.4 Wat2 .3122 -.4351 .5171 1.8 Wat3 .4893 -.4520 .2580 1.9 Wat4 -.4763 .1230 .1925 5.3 Wat5 .2289 -.2306 .3338 1.4 Wat6 -.2241 .0387 .1677 1.4