...Igor V. Pekov; Natalia N. Koshlyakova; Dmitry I. Belakovskiy; Marina F. Vigasina; Natalia V. Zubkova; Atali A. Agakhanov; Sergey N. Britvin; Evgeny G. Sidorov; Dmitry Yu. Pushcharovsky Abstract The new alluaudite-group mineral khrenovite with the ideal, end-member formula Na 3 Fe 3+ 2 (AsO 4 ) 3...

...Igor V. Pekov; Natalia N. Koshlyakova; Dmitry I. Belakovskiy; Marina F. Vigasina; Natalia V. Zubkova; Atali A. Agakhanov; Sergey N. Britvin; Evgeny G. Sidorov; Dmitry Yu. Pushcharovsky Abstract The new alluaudite-group mineral paraberzeliite was found in the Arsenatnaya fumarole, Second scoria cone...

...Kimberly T. Tait; Frank C. Hawthorne; Norman M. Halden ABSTRACT A systematic study of alluaudite, hagendorfite, and varulite was done using single-crystal X-ray diffraction, powder diffraction, and electron probe microanalysis of samples from 12 separate localities. The crystal structures...

...Igor V. Pekov; Natalia N. Koshlyakova; Atali A. Agakhanov; Natalia V. Zubkova; Dmitry I. Belakovskiy; Marina F. Vigasina; Anna G. Turchkova; Evgeny G. Sidorov; Dmitry Yu. Pushcharovsky Abstract The new alluaudite-group mineral calciojohillerite is one of the major arsenates in sublimates...

...Igor V. Pekov; Natalia N. Koshlyakova; Atali A. Agakhanov; Natalia V. Zubkova; Dmitry I. Belakovskiy; Marina F. Vigasina; Anna G. Turchkova; Evgeny G. Sidorov; Dmitry Yu. Pushcharovsky Abstract The new alluaudite-group mineral badalovite was found in the Arsenatnaya fumarole at the Second scoria...

...Frédéric Hatert The alluaudite supergroup contains sixteen Na–Mn–Fe-bearing phosphates occurring in granitic pegmatites, as well as nineteen Na-bearing arsenates found in various geological environments; these minerals are characterized by a monoclinic symmetry (generally C 2/ c or P 2 1 / n space...

... Mount Wills Granite. The phosphates include members of the arrojadite, alluaudite and jahnsite–whiteite groups, most commonly forming fine-grained intergrowths that have replaced primary phases such as triplite, wolfeite and presumed triphylite. Electron microprobe analysis has enabled...

...)(002,131,040,221), 2.787(93)(400,022,041,330), 2.718(100)( 21,240,112, 02), 2.641(42)( 32) and 1.5026(43)(multiple). Magnesiocanutite has a protonated alluaudite-type structure ( R 1 = 2.59% for 789 F o > 4σ F reflections) and is the Mg analogue of canutite. Using the results of both the microprobe analyses...

...Yamuna Singh; R. Viswanathan; K. L. Mundra; P. Jagadeesan; A. K. Sharma Abstract: For the first time we report alluaudite from India, which is metamict and is hosted in a zoned pegmatite, near Pisangan, Ajmer district, Rajasthan. Alluaudites known till date, all over the world, are non-metamict...

... example of a synthetic hydrous Na-Mg arsenate, and 2 and 3 are the first synthetic hydrous Na-Zn arsenates with octahedrally coordinated Zn atoms. They are all isostructural with the protonated members of the alluaudite-supergroup compounds; 2 is synthetic end-member of o’danielite. Their crystal...

..., shows canutite to be isostructural with protonated members of the alluaudite group. 1 1 2014 9 3 2014 © 2014 The Mineralogical Society 2014 The Torrecillas mine is located on Torrecillas Hill near Salar Grande, Iquique Province, Tarapacá Region, Chile (~20°58′13″S 70°8′17″W...

... member of the alluaudite group. Its structure is based upon chains of edge-sharing octahedra running along [−101] and linked by T (2)O 4 tetrahedra into layers parallel to (010). The layers are further interlinked through T (1)O 4 tetrahedra to form a three-dimensional octahedral-tetrahedral framework...

...Mélanie Rondeux; Frédéric Hatert Abstract Compounds of the Na 2 (Mn 1–x M x 2+ )Fe 2+ Fe 3+ (PO 4 ) 3 ( M 2+ = Mg, Cd, Ca, Ni, Zn) alluaudite-type solid solutions were synthesized by hydrothermal techniques at 1 kbar, between 400 and 600 °C, and were investigated by X-ray powder diffraction...

... and is a member of the alluaudite group; it is the first alluaudite-group mineral with an acid phosphate group. The new mineral is named in honor of Lee A. Groat, Professor of Mineralogy at the University of British Columbia in Vancouver. The species and the name groatite were approved by the Commission on New...

...Frédéric Hatert; Leila Rebbouh; Raphaël P. Hermann; André-Mathieu Fransolet; Gary J. Long; Fernande Grandjean Abstract Several compounds of the Na 2 (Mn 1− x Fe 2+ x ) 2 Fe 3+ (PO 4 ) 3 solid solution have been hydrothermally synthesized at 400 °C and 1 kbar; pure alluaudite-like compounds have...

...Frédéric Hatert; Raphaël P. Hermann; Gary J. Long; André-Mathieu Fransolet; Fernande Grandjean Abstract Several compounds of the NaMn(Fe 1– x In x ) 2 (PO 4 ) 3 solid solution were synthesized by solid state reaction in air; pure alluaudite-like compounds were obtained for x = 0.00 to 1.00. X...

...Frédéric HATERT; Paul KELLER; Falk LISSNER; Diano ANTENUCCI; André-Mathieu FRANSOLET Abstract Members of the Na 1-x Li x MnFe 2 (PO 4 ) 3 series, with the alluaudite structure type, were synthesized by solid-state reaction in air. The crystal structure refinement of the NaMnFe 2 (PO 4 ) 3 end...

...Paul B. Moore Abstract Three-dimensional crystal structure analysis of an alluaudite from the Buranga pegmatite, Central Africa, elucidated the crystal chemistry of the alluaudites (hagendorfite, hiihnerkobelite, varulite, mangan-alluaudite, alluaudite, and the arsenate mineral caryi-nite). R ( hkt...