Zaccagnaite Merlino S, Orlandi P American Mineralogist 86 (2001) 1293-1301 Carraraite and zaccagnaite, two new minerals from the Carrara marble quarries: their chemical compositions, physical properties and structural features _database_code_amcsd 0002735 3.0725 3.0725 15.114 90 90 120 P6_3/mmc atom x y z occ Uiso Al 0 0 0 1/3 .011 Zn 0 0 0 2/3 .011 O1 1/3 2/3 .0655 .017 O2 .241 -.241 .25 .040 C 0 0 .25 .019 H 1/3 2/3 .099 .01