...R. L. Frost; W. Martens; P. A. Williams; J. T. Kloprogge Abstract The molecular structure of the three vivianite-structure, compositionally related phosphate minerals vivianite, baricite and bobierrite of formula M 3 2+ (PO 4 ) 2 .8H 2 O where M is Fe or Mg, has been assessed using a combination...

... Ni 3 (PO 4 ) 2 ·8H 2 O Pakhomovskyite Co 3 (PO 4 ) 2 ·8H 2 O Barićite a Fe 2+ Mg 2 (PO 4 ) 2 ·8H 2 O Arsenates Annabergite Ni 3 (AsO 4 ) 2 ·8H 2 O Babánekite Cu 3 (AsO 4 ) 2 ·8H 2 O Erythrite Co 3 (AsO 4 ) 2 ·8H 2 O Hörnesite Mg 3 (AsO 4 ) 2 ·8H 2 O Köttigite Zn 3...

... barićite, have exhibited dominance of the same cation in the M 1 and M 2 sites, although partial ordering has been documented in some cases. The reader is referred to the detailed discussion of this subject in the descriptive paper on babánekite, Cu 3 (AsO 4 ) 2 ⋅8H 2 O, by Plášil et al. ( 2017 ). Note...

.... They include description of a new mineral, motukoreaite (1977), and several records of rare or unusual minerals (e.g. aguilarite, awaruite, baricite, bayerite and doyleite, dahlite and whitlockite, terrugite and nobleite, and uricite). Most are jointly authored with the finder who arrived with the ‘unknown...

... analysis showing 1.68 ± 0.14 ppm Mg and 5.69±0.37 ppm Mn, however, suggested some substitution of these elements in the vivianite structure, or minor amounts of other hydrous phosphate minerals such as bobierrite [Mg 3 (PO 4 ) 2 ·8H 2 O] or baricite [(Mg,Fe) 3 (PO 4 ) 2 ·8H 2 O]. No detectable As was found...

... as occuring at this locality, and BFR is the type locality for the minerals barićite ( Sturman & Mandarino 1976 ), gormanite ( Sturman et al . 1981a ), marićite ( Sturman et al . 1977 ), nahpoite ( Coleman & Robertson 1981 ), satterlyite ( Mandarino et al . 1978 ), and wicksite ( Sturman et al...

... Phenom. , 186 , 13 – 15 . Robertson , B.T. ( 1982 ): Occurrence of epigenetic phosphate minerals in a phosphatic iron-formation, Yukon Territory . Can. Mineral. , 20 , 177 – 187 . Sturman , B.D. & Mandarino , J.A. ( 1976 ): Baricite, the magnesium analogue of vivianite...

... & D.R. Keeney , editors). Agronomy Society of America and the Soil Science Society of America , Madison , Wisconsin, USA . Pratt A.R. ( 1997 ) Vivianite auto-oxidation . Physics and Chemistry of Minerals , 25 , 24 – 27 . Rodgers K.A. ( 1987 ) Baricite, a further...

... to precipitate in modern marine and lacustrine sediments (more readily than the Mg-rich end members bobierrite and baricite; Egger et al., 2015 ; Dijkstra et al., 2016 ; Fig. 4 ). These calculations show that for all conditions except those associated with alkaline pH and very high marine [Ca 2...

... under the lazulite heading below. Baricite [(Mg,Fe) 3 (PO 4 ) 2 ·8H 2 O] is a member of the vivianite group and is discussed with that group below under the vivianite heading. Although no sample of the uranyl phosphate bassetite [Fe 2+ (UO 2 ) 2 (PO 4 ) 2 ·8H 2 O] was available...

.... Babánekite (IMA 2012-007), ideally Cu 3 (AsO 4 )2·8H 2 O, monoclinic, is a new member of the vivianite group Me 3 ( X O 4 ) 2 (H 2 O) 8 where Me = divalent cations and X = P 5+ or As 5+ . Four P-dominant members [vivianite (Fe), arupite (Ni), barićite (Mg, Fe), and pakhomovskyite (Co)] and six...

... , Eds ., Confocal Raman Microscopy . 2nd edition , 209 – 236 . Springer International Publishing . Frost , R.L. , Martens , W. , Williams , P.A. , and Kloprogge , J.T. ( 2002 ) Raman and infrared spectroscopic study of the vivianite-group phosphates vivianite, baricite...

... spectroscopic study of the vivianite-group phosphates vivianite, baricite and bobierrite . Mineralogical Magazine 66 , 1063 – 1073 . Frost, R.L., Čejka, J., Weier, M...