... mahlmoodite, occurs as spherules of radiating fibers usually perched on crystals of pyroxene in vugs. The X-ray powder diffraction data, which are analogous to those of synthetic α -MZr(PO 4 ) 2 ·4H 2 O where M is a divalent cation Mn, Ni, Co, Cu, or Zn, have been indexed on a monoclinic lattice in space...

... ( e.g. , kosnarite -KZr 2 (PO 4 ) 3 ; selwynite - NaK(Be,Al)Zr 2 (PO 4 ) 4 ·2H 2 O; mahlmoodite - FeZr(PO 4 ) 2 -4H 2 O; synthetic α-Zr(HPO 4 ) 2 -H 2 O, ZrKH(PO 4 ) 2 and Zr 2 (NaPO 4 ) 4 ·6H 2 O) demonstrates that a heteropolyhedral layer composed of corner-linked PO 4 tetrahedra and ZrO 6 octahedra...

... ) showed that a sheet of corner-sharing octahedra and tetrahedra of the form [Zr(PO 4 ) 2 ] 2- is a common structural element in a series of zirconium phosphates. Milton et al . ( 1993 ) recognized that this structural element is also present in mahlmoodite, and this provided enough information for them...

... reflection should be 4.789 Å and not 7.489 Å. A mis-spelling of the mineral malhmoodite should also be noted. Originally named mahlmoodite, “...for the late Bertha K. Mahlmood...”, by Milton et al . (1993), the spelling mahlmoodite was corrected to malhmoodite by the IMA in 2002 (case No 02-D 2002...

... of the (PO 4 ) tetrahedra ( Fig. 2 ). The structure is formally a heteropolyhedral framework, but the linkage is weaker in the c direction, accounting for the marked (001) cleavage. Mahlmoodite, Fe 2+ Zr(PO 4 ) 2 (H 2 O) 4 , was described as a new mineral species by Milton et al . ( 1993 ) from...

.... (1993) Mahlmoodite, FeZr(PO 4 ) 2 ·4H 2 O, a new iron zirconium phosphate mineral from Wilson Springs, Arkansas . American Mineralogist 78 , 437 – 440 . Moore, P.B. & Araki, T...

..., heterosite, hotsonite, johnsomervilleite, kanonerovite, keckite, kintoreite, kleemanite, kolbeckite, kribergite, lacroixite, lermontovite, lipscombite, ludjibaite, maghagendorfite, mahlmoodite, mantiennéite, meta-ankoleite, metasaléeite, metavariscite, metavauxite, mitryaevaite, morinite, mrázekite...

... - Duhamelite discredited = mottramite. IMA Code 02-A - Tripuhyite is redefined as FeSbO 4 and squawcreekite of Ford et al. (1991) is discredited . IMA Code 02-B - Arhbarite is redefined as triclinic Cu 2 Mg(AsO 4 )(OH) 3 . IMA Code 02-D - The mineral name mahlmoodite is corrected...

... Mahlmoodite = malhmoodite Approval of change in name Magnocolumbite = magnesiocolumbite § Chairman-Emeritus, Commission on New Minerals and Mineral Names. E-mail address : [email protected] . ¶ Vice-Chairman, Commission on New Minerals and Mineral Names. E-mail address...

... is a heteropolyhedral framework mineral and is isochemical with mahlmoodite. There are two P sites, two Mg sites occupied by Mg and octahedrally coordinated by two O anions and four (H 2 O) groups, and one Zr site, occupied by Zr and octahedrally coordinated by six O anions. The (ZrO 6 ) octahedron shares corners...

... . Geology, Mount Peck, British Columbia . Geological Survey of Canada , Canadian Geoscience Map 9 . Milton , C. , McGee , J.J. and Evans , H.T . 1993 . Mahlmoodite , FeZr(PO 4 ) 2 ·4H 2 O, a new iron zirconium phosphate mineral from Wilson Springs, Arkansas . American Mineralogist...

...) Maghagendorfite Na[Mn 2+ MgFe 2+ 2 (PO 4 ) 3 ] - - - - - - - (175) Magniotriplite Mg 2 (PO 4 )F 12.035(5) 6.432(4) 9.799(2) 90 108.1(0) 90 I 2/ a (176) Mahlmoodite FeZr(PO 4 ) 2 (H 2 O) 4 9.12(2) 5.42(1) 19.17(2) 90 94.8(1) 90 P 2 1 / c (177) Mangangordonite Mn 2+ [Al 2...