Schorl Bosi F, Lucchesi S European Journal of Mineralogy 16 (2004) 335-344 Crystal chemistry of the schorl-dravite series Note: TourmalineTM60e Locality: Bovey Tracy, Devonshire, England _database_code_amcsd 0007047 15.9856 15.9856 7.1840 90 90 120 R3m atom x y z occ NaX 0 0 .22615 .682 CaX 0 0 .22615 .093 KX 0 0 .22615 .009 Fe2+Y .12432 .06216 .63004 .408 AlY .12432 .06216 .63004 .310 MgY .12432 .06216 .63004 .153 Fe3+Y .12432 .06216 .63004 .090 Ti4+Y .12432 .06216 .63004 .027 ZnY .12432 .06216 .63004 .005 Mn2+Y .12432 .06216 .63004 .004 AlZ .29837 .26172 .61130 .874 MgZ .29837 .26172 .61130 .086 Fe2+Z .29837 .26172 .61130 .039 Fe3+Z .29837 .26172 .61130 .001 SiT .19179 .18989 0 .979 AlT .19179 .18989 0 .021 B .11016 .22032 .45485 OH1W 0 0 .77957 .443 O1W 0 0 .77957 .352 F1W 0 0 .77957 .205 O2 .06134 .12268 .48358 OH3V .26782 .13391 .51073 O4 .09302 .18604 .06911 O5 .18550 .09275 .09080 O6 .19708 .18716 .77670 O7 .28482 .28505 .07962 O8 .20962 .27036 .44127