Rosenbergite
Olmi F, Sabelli C, Trosti-Ferroni R
European Journal of Mineralogy 5 (1993) 1167-1174
Rosenbergite, AlF[F0.5(H2O)0.5}4.H2O, a new mineral from the
Cetine mine (Tuscany, Italy): description and crystal structure
Locality: Cetine mine, Tuscany, Italy
7.715 7.715 3.648 90 90 90 *P4/n
.25 -.25 0
atom     x     y     z occ Biso B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3) B(2,3)
Al     1/4   1/4 .1396      .88 .00404 .00404 .01336       0       0      0
F      1/4   1/4 .6384     1.98 .01099 .01099 .01328       0       0      0
O1     3/4   1/4   1/2     1.41 .00537 .00537 .03145       0       0      0
O2   .4652 .3484 .1366  .5 1.91 .00553 .00776 .04833 -.00145 -.00312 .00692
F2   .4652 .3484 .1366  .5 1.91 .00553 .00776 .04833 -.00145 -.00312 .00692
H1    .655  .283  .379  .5 3.00
H2    .488  .449  .046  .5 3.00
H3    .560  .315  .258  .5 3.00