... of one sheet to O anions of adjacent sheets. Turanite can be considered as a framework structure with interrupted sheets of (Cuϕ 6 ) octahedral decorated by (VO 4 ) tetrahedra, and is related to the structures of cornubite, cianciulliite, gordaite, bechererite, chalcophyllite, ramsbeckite...

... shale as rosette aggregates up to 100 μm in diameter, composed of hexagonal platy crystals up to 50 μm in diameter and 10 μm in thickness. The associated minerals are chamosite, muscovite, smithsonite, serpierite, ramsbeckite, ‘limonite’ and chalcopyrite. Minohlite has hexagonal (or trigonal) symmetry...

... of the form [ [6] M φ 2 ] 4 with an interrupted sheet, and is related to the structures of cianciulliite, gordaite, namuwite, bechererite, chalcophyllite, ramsbeckite, chalcophanite and claringbullite. § E-mail address : frank_hawthorne@umanitoba.ca 05 10 2001 10 04 2002 ©...

...F ig . 6. The basic zinc copper sulfate minerals displayed in term of the diagram (ZnO + CuO) − SO 3 − H 2 O. Minerals plotted: 1: osakaite, 2: namuwite, 3: ktenasite, 4: langite and wroewolfeite, 5: christelite, 6: ramsbeckite, 7: schulenbergite, 8: redgillite, 9: posnjakite, 10: brochantite...

.... Graph 4d is an example of a net with two- and three-valent black vertices. The homeomorphic sheet has the composition (Cu 2+ 26 X 16 ϕ 36 ) and layer symmetry P 2 1 / a. The sheet occurs in ramsbeckite, [(Cu 2+ ,Zn) 15 (OH) 22 (SO 4 ) 4 ] (H 2 O) 6 ( Table 3 ). This is not immediately apparent...

... with lesser amounts of chalcopyrite, pyrite, and galena. Within the mine a variety of secondary minerals including smithsonite, hydrozincite, schulenbergite, the Zn-dominant analogue of schulenbergite, brianyoungite, hemimorphite, brochantite, ramsbeckite, aurichalcite, malachite, azurite, posnjakite...

... (OH) 16 Cl 4 (SO 4 ) 2 . Tschermaks Mineralogische und Petrographische Mitteilungen , 34 , 279 – 88 . Effenberger , H. ( 1988 ) Ramsbeckite, (Cu, Zn) 15 (OH) 22 (SO 4 ) 4 •6H 2 O: Revision of the chemical formula based on a structure determination . Neues Jahrbuch für Mineralogie...

..., cianciullite, gordaite, namuwite, ramsbeckite and simonkolleite ( Hawthorne and Sokolova, 2002 ). The Cu(1) atom is coordinated by four OH groups and two Br atoms in a Jahn-Teller distorted octahedral arrangement ( Jahn and Teller, 1937 ; Burns and Hawthorne, 1996 ). As is usual for mixed-ligand Cu(1)ϕ 6...

... et al. 1995 ), it is found as a secondary mineral, associated with Cu-alteration minerals such as ramsbeckite and posnjakite. At Vulcano island, Sicily, Italy, it is found as a fumarolic phase ( Bernauer 1941 ). Raade and Haug (1980) have reported its presence as a late-stage, cavity filling phase...

..., linarite, posnjakite, pyromorphite, ramsbeckite, rosasite, schulenbergite, smithsonite, sulphur, susannite, wroewolfeite and wulfenite. At the other localities where redgillite occurs, it appears to be a dump oxidation product and, therefore, is probably post-mining in origin. Redgillite typically...

..., mirabilite, mohrite, moorhouseite, morenosite, nakauriite, natroalunite, nickel-boussingaultite, niedermayrite, orthoserpierite, palmierite, parabutlerite, pentahydrite, pickeringite, picromerite, polyhalite, ramsbeckite, rapidcreekite, retgersite, römerite, rozenite, schaurteite, serpierite, sideronatrite...

...; the octahedral–tetrahedral sheet in (h) ramsbeckite, and (i) the structure of ramsbeckite. ...

... 1996) looks anthropogenic from photos ? Pharmacolite Ca(AsO 3 OH)·2H 2 O Mole River mine, northern New South Wales, Australia in dump ( Ashley and Lottermoser 1999 ) OK Wittichen im Fürstenbergischen, Baden-Württemberg, Germany (type) ( Klaproth 1804) Ramsbeckite (Cu,Zn) 15 (SO 4 ) 4 (OH...

..., nahcolite, syngenite, barite, hexahydrite, cyanochlorite, natrochalcite, ramsbeckite, and many others), and soluble sulfur species ( SO 4 2 − , HS – , SO 3 2 − ) ( Borisenko et al., 2015 ; Borovikov et al., 2015 ). The high concentration of sulfur and the oxidized state...