...Paul Brian Moore; Jun Ito Abstract Three new species,—jahnsite, segelerite, and robertsite,—occur in moderate abundance as late stage products in corroded triphylite-heterosite-ferrisicklerite-rockbridgeite masses, associated with leucophosphite, hureaulite, collinsite, laueite, etc . Type...

...Ian E. Grey; W. Gus Mumme; Peter J. Downes; Benjamin A. Grguric; Robert W. Gable The crystal structure of segelerite, Ca 2 Mg 2 Fe 1.4 3 + Al 0.6 (PO 4 ) 4 (OH) 2 (H 2 O) 8 , from the Mount Deverell variscite deposit, Western Australia, has been refined using single-crystal X-ray data to wR obs...

...P. B. Moore; T. Araki Abstract overite, [Mg(H 2 O 4 ] 2 [Ca 2 Al 2 (OH) 2 (PO 4 ) 4 ], Z = 4, a = 14.723(14), b = 18.746(16), c = 7.107(4) A, orthorhombic, space group Pbca ; and segelerite, [Mg(H 2 O) 4 ] 2 [ C a 2 F e 2 3 + ( O H ) 2 ( P O 4 ) 4 ] , Z = 4, a = 14.826(5), b = 18.751(4), c = 7.307...

... time the standard formation enthalpy (Δ H f o ), Gibbs free energy (Δ G f o ), and entropy ( S °) of 15 jahnsite/whiteite end-member compositions, as well as of related phases such as segelerite and alluaudites. These estimations were then used to feed speciation/phase diagram calculation tools...

...Figure 2 X-ray diffraction (XRD) patterns. A: Neapolitan Yellow Tuff. Only hydrated minerals and biotite (Bt) are labeled in A. Ph—phillipsite; Ch—chabazite; An—analcime; Se—segelerite. B: Gray Campanian Ignimbrite (welded gray ignimbrite, WGI). C: Piperno Tuff. Panels show both “as-received” XRD...

... and iron ore resources of the Middleback Range Area . Bulletin of the Geological Survey of South Australia 33 , 245 pp . Moore, P.B. (1974) I. Jahnsite, segelerite, and robertsite, three new transition metal...

.... (1974) Jahnsite, segelerite, and robertsite, three new transition metal phosphate species. II. Redefinition of overite, an isotype of segelerite. III. Isotypy of robertsite, mitridatite, and arseniosiderite . American Mineralogist 59 , 48 – 59 . Moore...

... arrangement . American Mineralogist 57 , 24 – 35 . Moore P.B. ( 1973 ) Pegmatite phosphates: descriptive mineralogy and crystal chemistry . The Mineralogical Record 4 , 103 – 130 . Moore P.B. ( 1974 ) I. Jahnsite, segelerite, and robertsite, three new metal transition phosphate...

..., segelerite and robertsite, three new transition metal phosphate species. II. Redefinition of overite, an isotype of segelerite . Am. Mineral . 59 , 48 – 59 . Moore , P.B. & Araki , T. ( 1974 ): Jahnsite CaMn 2+ Mg 2 (H 2 O) 8 Fe 8+ 2 (OH) 2 [PO 4 ] 4 : a novel stereoisomerism...

... proposals . Eur. J. Mineral. , 21 , 1073 – 1080 . Moore , P.B. ( 1974 ): Jahnsite, segelerite, and robertsite, three new transition metal phosphate species. II. Redefinition of overite, an isotype of segelerite. III. Isotypy of robertsite, mitridatite, and arseniosiderite . Am. Mineral...

.... & Araki , T. ( 1974 ): Jahnsite, CaMn 2+ Mg 2 (H 2 O) 8 Fe 2   3+ (OH) 2 [PO 4 ] 4 : a novel stereoisomerism of ligands about octahedral corner-chains . Am. Mineral . 59 , 964 – 973 . Moore , P.B. & Araki , T. ( 1977 ): Overite, segelerite, and jahnsite: a study...

... group from the Mangualde pegmatite deposit, Portugal . Canadian Mineralogist 27 , 447 – 449 . Moore, P.B. (1974) Jahnsite, segelerite, and robertsite, three new transition metal phosphate species. II. Redefinition...

.... Jahnsite, segelerite and robertsite, three new transition metal phosphate species. II Redefinition of overite, an isotype of segelerite. III. Isotypy of robertsite, mitridatite and arseniosiderite . American Mineralogist , 59 , 48 – 59 . Moore P.B. Araki T. ( 1974 ) Jahnsite, CaMn 2...

... of the cations occupying the X and M 1 sites. In Fig. 8 a is plotted against the average of the ionic radii (Shannon, 1976 ) of the cations in the X and M 1 sites. A clear inverse correlation is obtained with R 2  = 0.88. The correlation extends to the geometric isomer mineral segelerite, Ca 2 Mg 2...