... and CR in a specimen provided by the late Hebe Dina Gay from the El Criollo mine in the Cerro Blanco Pegmatite District near Tanti, San Roque District, Punila Department, Cordoba Province, Argentina (31°21'28''S, 64°39'09''W). The El Criollo mine is the type locality for benyacarite, KTiMn 2 Fe 2 (PO 4...

... crystal structure synchrotron microfocus beam studies The K- and Ti-bearing secondary phosphate minerals paulkerrite ( Peacor et al . 1984 ), mantiennéite ( Fransolet et al . 1984 ), and benyacarite ( Demartin et al . 1993 , 1997 ) were reported with similar compositions and the orthorhombic...

... containing hydroxyl or halogen. This classification group is called the paulkerrite group in Dana's New Mineralogy, edition 8 (Gaines et al. , 1997 ) and comprises paulkerrite (Peacor et al. , 1984 ), mantienneite (Fransolet et al. , 1984 ) and benyacarite (Demartin et al. , 1997 ) that have all been...

.... Mineral. 79 1994, 388. Mátraite = densely twinned columnar sphalerite : Acta Mineral.-Petrogr. ( Szeged ) 41 (Suppl.) (2000), 124. Matveevite = Mg-Al-bearing benyacarite : Can. Mineral . 35 1997, 711. Maufite = interstratified clinochlore – lizardite : Can. Mineral. 36 1998...

... is accepted, and the ideal formula of benyacarite is revised as (H 2 O) 2 Mn 2 Ti 2 Fe 3+ (PO 4 ) 4 (OF)(H 2 O) 10 ⋅4H 2 O. (Adam Pieczka) Proposal 23-E is accepted, and the ideal formula of avdeevite is revised as NaAl 4 (Be 5 Li)(Si 6 O 18 ) 2 (H 2 O) 1-2 . (Daniel Atencio) Proposal 23...

... M 2 2 M 3(PO 4 ) 4 X 2 (H 2 O) 10 ⋅4H 2 O, where A  = K, H 2 O; M  = Mg, Mn 2+ , Al, Fe 3+ , Ti; X  = O, OH, F. The following species belong to the group: paulkerrite, mantienneite, benyacarite, pleysteinite and hochleitnerite. Wiperamingaite NaCaFe 3+ Al(PO 4 )F 5 (OH)⋅H 2 O...

... fluorite, pachnolite, fluellite and benyacarite are found in the pegmatites of the nearby Cerro Blanco district. F ig . 1. Carlhintzeite crystals up to 0.4 mm long on bermanite. At the Gigante pegmatite, carlhintzeite occurs as single crystals ( Fig. 1 ) up to 0.8 mm long, and as crystal...

...-mail: [email protected] Isostructural with benyacarite and pleysteinite Orthorhombic: Pbca ; structure determined a  = 10.5513(3), b  = 20.6855(7), c  = 12.4575(4) Å 10.32(51), 7.51(55), 6.24(72), 5.23(43), 3.747(52), 3.141(100), 2.881(59), 2.619(60) Type material is deposited...

..., waylandite, weinebeneite, whiteite-(CaFeMg), whiteite-(CaMnMg), whiteite-(MnFeMg), wicksite, wolfeite, woodhouseite, zanazziite and zincolibethenite. Alluaudite, althausite, arctite, augelite, bariæite, bearthite, belovite-(La), benyacarite, beraunite, berlinite, bertossaite, bobfergusonite...

.... The first type is derived from the alteration of triplite–zwieselite yielding, in order of abundance, phosphosiderite, strengite, rockbridgeite–frondelite, cacoxenite, bermanite, beraunite, strunzite, stewartite, laueite, leucophosphite, benyacarite, fluorapatite, wavellite and kidwellite. The second type...

..., benyacarite, beraunite, childrenite, ferrisicklerite, fluellite, hureaulite, jahnsite-(CaMnMn), koninckite, kryzhanovskite, lipscombite, mitridatite, morinite, paravauxite, phosphophyllite, phosphoferrite, reddingite, rockbridgeite, stewartite, vivianite, whitmoreite, jungite, keckite, laueite, lehnerite...

... was co-author of the description of benyacarite, a new mineral from the El Criollo pegmatite, a few kilometers east of the Gigante pegmatite. Both the new mineral and its name have been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association...

[email protected] The Mn 2+ analogue of mantienneite, and the Al analogue of benyacarite Orthorhombic: Pbca ; structure determined a  = 10.4133(8), b =20.524(2), c =12.265(1) Å 10.29(49), 7.41(65), 6.13(100), 5.20(43), 3.699(59), 3.122(69), 2.859(76), 2.606(37) Type material is deposited...

..., barbosalite, benyacarite, beraunite, childrenite, ferrisicklerite, fluellite, hureaulite, jahnsite-(CaMnMn), koninckite, kryzhanovskite, lipscombite, mitridatite, morinite, paravauxite, phosphophyllite, phosphoferrite, reddingite, rockbridgeite, stewartite, vivianite, whitmoreite, jungite, keckite, laueite...

... vein deposits: extremes in structural state . Can. Mineral . 24 , 717 – 728 . Demartin , F. , Gay , H.D. , Gramaccioli , C.M. & Pilati , T. ( 1997 ): Benyacarite, a new titanium-bearing phosphate mineral species fom Cerro Blanco, Argentina . Can. Mineral . 35 , 707...

... Na 14 Ce 6 Mn 2+ Mn 3+ Fe 2+ 2 Zr(Si 6 O 18 ) 2 (PO 4 ) 7 (H 2 O) 3 R 3 m Vuonnemite Na 11 Ti 4+ Nb 2 (Si 2 O 7 ) 2 (PO 4 ) 2 O 3 (OH) P 1̅ Yoshimuraite Ba 2 Mn 2 TiO(Si 2 O 7 )(PO 4 )(OH) P 1̅ Benyacarite (H 2 O,K) 2 TiMn 2+ 2 (Fe 3+ ,Ti) 2 (PO 4 ) 4 (OH) 2 (H 2 O) 14 Pbca...