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Crystal structure of austinite, CaZn(AsO4)OH

  • Lori A. Clark (a1), Joseph J. Pluth (a2), Ian Steele (a2), Joseph V. Smith (a2) and Stephen R. Sutton (a2)...

Abstract

Austinite belongs to the adelite mineral group of calcium and lead arsenates, and has the conichalcite/descloizite type of crystal structure. The crystal structure of nearly pure austinite, CaZn(AsO4)OH, was redetermined (R = 0.014) and the absolute configuration identified. The space group P212121 and cell parameters a 7.5092(8), b 9.0438(9), c 5.9343(8) Å match previous data. Zinc octahedra share edges to form chains parallel to c. Arsenic tetrahedra share vertices with the Zn octahedra to generate a compact framework. Calcium square antiprisms share edges to make chains parallel to a that occupy the channels in the zinc-arsenic framework.

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Basso, R., Palenzona, A. and Zcfiro, L. (1989) Crystal structure refinement of a Sr-bearing term related to copper vanadates and arsenates of adelite and descloizite groups. Neues Jahrb. Mineral. Mh., 300—8.
Brown, I.D. (1976) On the geometry of O - H…O hydrogen bonds. Acta Crystallogr., A32, 24—31.
Cesbron, F.P., Ginderow, D., Giraud, R., Pelisson, P. and Pillard, F. (1987) La nickelaustinite Ca(Ni,Zn)(AsO4)(OH): nouvelle espèce minérale du district cobalto-nickelifère de Bou-Azzer, Maroc. Canad. Mineral., 25, 401—7.
Crowley, J.A. (1975) The mineralogy of the Zinc Hill Mine, Inyo County, California. Mineral. Record, 6(3), 110-3.
Dunn, P.J. (1979) Contributions to the mineralogy of Franklin and Sterling Hill, New Jersey. Mineral. Record, 10(3), 160-5.
Eby, R.K. and Hawthorne, F.C. (1993) Structural relations in copper oxysalt minerals. I. Structural hierarchy. Acta Crystallogr., B49, 2856.
Fleischer, M. (1987) Glossary of Mineral Species, 5th Ed. Mineralogical Record Inc.: Tucson.
Giuseppetti, G. and Tadini, C. (1988) The structure of austinite, CaZn(AsO4)(OH) from Kamareza, Laurion (Greece). Neues Jahrb. Mineral. Mh., 159-66.
Hawthorne, F.C. (1992) The role of OH and H2O in oxide and oxysalt minerals. Zeits. Kristallogr.., 201, 183-206.
Jambor, J.L., Owens, D.R. and Dutrizac, J.E. (1980) Solid solution in the adelite group of arsenates. Canad. Mineral., 18, 191-5.
Magalhāes, M.C.F., Pedrosa de Jesus, J.D. and Williams, P.A. (1988) The chemistry of formation of some secondary arsenate minerals of Cu(II), Zn(II) and Pb(II). Mineral. Mag., 52, 679-90.
Nickel, E.H. and Birch, W.D. (1988) Cobaltaustinite - A new arsenate mineral from Dome Rock, South Australia. Austral. Mineral., 3, 53—7.
Qurashi, M.M. and Barnes, W.H. (1963a) The structures of the minerals of the descloizite and adelite groups: IV – Descloizite and conichalcite (Part 2). The structure of conichalcite. Canad. Mineral., 7, 561–77.
Qurashi, M.M. and Barnes, W.H. (1963b) The structures of the minerals of the descloizite and adelite groups: V — Descloizite and conichalcite (Part 3). The structure of descloizite. Amer. Mineral., 48, 23—39.
Radcliffe, D. and Simmons, W.B. (1971) Austinite: chemical and physical properties in relation to conichalcite. Amer. Mineral., 56, 1359—65.
Richmond, W.E. (1940) Crystal chemistry of the phosphates, arsenates and vanadates of the type A2XO4(Z). Amer. Mineral., 25, 441-79.
Shannon, R.D. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallogr., A32, 751—67.
Sheldrick, G.M. (1993) SHELXL93. Program for the Refinement of Crystal Structures Univ. Gottingen, Deutschland.
Staples, L.W. (1935) Austinite, a new arsenate mineral, from Gold Hill, Utah. Amer. Mineral., 20, 112–9.
Sumin de Portilla, V.I. (1974) Infrared spectroscopic investigation of the structure of some natural arsenates and the nature of H-bonds in their structures. Canad. Mineral., 12, 262—8.

Keywords

Crystal structure of austinite, CaZn(AsO4)OH

  • Lori A. Clark (a1), Joseph J. Pluth (a2), Ian Steele (a2), Joseph V. Smith (a2) and Stephen R. Sutton (a2)...

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