Piemontite Bonazzi P, Garbarino C, Menchetti S European Journal of Mineralogy 4 (1992) 23-33 Crystal chemistry of piemontites: REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy Sample: BR1C Locality: Monte Brugiana, Alpi Apuane, Italy _database_code_amcsd 0006435 8.881 5.683 10.150 90 114.99 90 P2_1/m atom x y z occ Uiso CaA1 .7575 .75 .1517 .74 .0085 MnA1 .7575 .75 .1517 .245 .0085 CaA2 .5953 .75 .4261 .74 .0117 SrA2 .5953 .75 .4261 .03 .0117 LaA2 .5953 .75 .4261 .16 .0117 CeA2 .5953 .75 .4261 .04 .0117 PrA2 .5953 .75 .4261 .02 .0117 NdA2 .5953 .75 .4261 .06 .0117 SmA2 .5953 .75 .4261 .003 .0117 ThA2 .5953 .75 .4261 .004 .0117 AlM1 0 0 0 .5833 .0080 MgM1 0 0 0 .0266 .0080 MnM1 0 0 0 .245 .0080 FeM1 0 0 0 .13 .0080 AlM2 0 0 .5 .5833 .0071 MgM2 0 0 .5 .0266 .0071 MnM2 0 0 .5 .245 .0071 FeM2 0 0 .5 .13 .0071 AlM3 .2991 .25 .2192 .5833 .0065 MgM3 .2991 .25 .2192 .0266 .0065 MnM3 .2991 .25 .2192 .245 .0065 FeM3 .2991 .25 .2192 .13 .0065 Si1 .3415 .75 .0432 .0071 Si2 .6875 .25 .2758 .0069 Si3 .1874 .75 .3217 .0043 O1 .2363 .9916 .0353 .0143 O2 .3090 .9778 .3569 .0081 O3 .7985 .0155 .3375 .0093 O4 .0555 .25 .1303 .0068 O5 .0447 .75 .1499 .0081 O6 .0714 .75 .4108 .0065 O7 .5141 .75 .1823 .0110 O8 .5335 .25 .3200 .0193 O9 .6186 .25 .1004 .0204 O10 .0871 .25 .4321 .0053 H .04 .25 .36 .02