Leadhillite Giuseppetti G, Mazzi F, Tadini C Neues Jahrbuch fur Mineralogie, Monatshefte 1990 (1990) 255-268 The crystal structure of leadhillite: Pb4(SO4)(CO3)2(OH)2 Locality: Iglesiente area, Sardinia, Italy _database_code_amcsd 0014843 9.11 20.82 11.59 90 90.46 90 P2_1/a atom x y z Biso Pb1 .4179 .1789 .1083 .85 Pb2 .4295 .4324 .1034 .85 Pb3 .4143 .6934 .0939 .90 Pb4 .4065 .9385 .1032 .85 Pb5 .6260 .0479 .3211 2.35 Pb6 .5584 .2826 .3380 1.26 Pb7 .5354 .5736 .3188 2.78 Pb8 .6078 .8319 .3187 1.33 S1 .2300 .0737 .4873 1.18 S2 .2384 .3175 .5132 1.09 C1 .256 .057 .158 1.6 C2 .257 .313 .146 1.0 C3 .250 .563 .124 1.1 C4 .249 .809 .155 3.7 O1 .074 .087 .465 4.2 O2 .100 .281 .541 1.0 O3 .300 .138 .475 2.1 O4 .208 .387 .512 2.3 O5 .285 .024 .411 5.6 O6 .292 .293 .400 2.2 O7 .242 .055 .614 2.1 O8 .346 .304 .606 2.2 O9 .184 .005 .150 1.2 O10 .183 .258 .152 1.7 O11 .183 .507 .129 1.4 O12 .172 .758 .139 1.0 O13 .397 .057 .153 2.1 O14 .401 .311 .151 1.0 O15 .395 .562 .128 1.6 O16 .389 .807 .152 1.9 O17 .183 .114 .164 1.8 O18 .183 .367 .131 1.8 O19 .172 .617 .119 1.0 O20 .181 .868 .151 1.1 OH1 .467 .184 .294 2.4 OH2 .386 .448 .288 1.7 OH3 .388 .671 .284 1.4 OH4 .468 .936 .290 1.4