1679

Hydromaghemite, an intermediate in the hydrothermal transformation of 2-line ferrihydrite into hematite
Vidal Barrón, José Torrent, and Eddy de Grave

1703

Calderonite, a new lead-iron-vanadate of the brackebuschite group
José González Del Tánago, Ángel La Iglesia, Jordi Rius, and Soledad Fernández Santín

1718

Crystal structure of protoanthophyllite: A new mineral from the Takase ultramafic complex, Japan
Hiromi Konishi, Thomas L. Groy, István Dódony, Ritsuro Miyawaki, Satoshi Matsubara, and Peter R. Buseck

1778

Cathodoluminescence investigations on the Popigai, Ries, and Lappajärvi impact diamonds
Giovanni Pratesi, Alessandro Lo Giudice, Sergei Vishnevsky, Claudio Manfredotti, and Curzio Cipriani

1788

Isomorphous cation substitution in dioctahedral phyllosilicates by means of ab initio quantum mechanical calculations on clusters
Vicente Timón, C. Ignacio Sainz-Díaz, Vicente Botella, and Alfonso Hernández-Laguna

1801

Influence of layer charge on the hydroxyl stretching of trioctahedral clay minerals: A vibrational study of synthetic Na- and K-saponites
Manuel Pelletier, Laurent J. Michot, Bernard Humbert, Odile Barrès, Jean-Baptiste d’Espinose de la Caillerie, and Jean-Louis Robert

1817

Rock-forming moissanite (natural α-silicon carbide)
Simonpietro Di Pierro, Edwin Gnos, Bernard H. Grobety, Thomas Armbruster, Stefano M. Bernasconi, and Peter Ulmer

1832

Rubidium- and cesium-dominant micas in granitic pegmatites
Petr Cerny, Ron Chapman, David K. Teertstra, and Milan Novák

1841

BOOK REVIEWS: EMERALDS OF THE WORLD, extralapis English No.2: The Legendary Green Beryl. Alfredo Petrov and Günter Neumeier (translators). Christian Weise Verlag, Munich, and Lapis International, East Hampton, Connecticut, 2002, 100 pp. and HANDBOOK OF MINERALOGY,VOLUME V. Borates, Carbonates, Sulfates. By John W. Anthony, Richard A. Bideaux, Kenneth W. Bladh,and Monte C. Nichols. Mineral Data Publishing, Tucson, Arizona, 2003, 813 pp.
Florie Caporuscio and Anthony R. Kampf

1853

Micro- and nanochemistry of fly ash from a coal-fired power plant
Reto Gieré, Loran E. Carleton, and Gregory R. Lumpkin

1970

Composition, Fe³⁺/∑Fe, and crystal structure of non-asbestiform and asbestiform amphiboles from Libby, Montana, U.S.A.
Mickey E. Gunter, M. Darby Dyar, Brendan Twamley, Franklin F. Foit Jr., and Scott Cornelius

1989

Nanomorphology of montmorillonite particles: Estimation of the clay edge sorption site density by low-pressure gas adsorption and AFM observations
Christophe Tournassat, Alexander Neaman, Frédéric Villiéras, Dirk Bosbach, and Laurent Charlet

1996

Medieval stained glass in a Mediterranean climate: Typology, weathering and glass decay, and associated biomineralization processes and products
M. Garcia-Vallès, D. Gimeno-Torrente, S. Martínez-Manent, and J.L. Fernández-Turiel

2007

The structure of disordered mackinawite
Mariëtte Wolthers, Sjierk J. Van der Gaast, and David Rickard

1822

Water solubility in carbonatite melts
Hans Keppler

1825

Trace element partitioning between mantle wedge peridotite and hydrous MgO-rich melt
Paula McDade, Jon D. Blundy, and Bernard J. Wood

2040

Tailoring calcite: Nanoscale AFM of coccolith biocrystals
K. Henriksen, S.L.S. Stipp, J.R. Young, and P.R. Bown

1633

Partial equilibrium of radiogenic and stable isotope systems in garnet peridotite during ultrahigh-pressure metamorphism
Yong-Fei Zheng, Jian-Jun Yang, Bing Gong, and Bor-Ming Jahn

1644

Experimental determination of Au solubility in rhyolite melt and magnetite: Constraints on magmatic Au budgets
Adam C. Simon, Thomas Pettke, Philip A. Candela, Philip M. Piccoli, and Christoph A. Heinrich

1652

Surface oxidation of chalcocite (Cu₂S) under aqueous (pH = 2-11) and ambient atmospheric conditions: Mineralogy from CuL– and OK-edge X-ray absorption spectroscopy
Emma C. Todd and David M. Sherman

1657

Determination of molar absorptivity of IR fundamental OH-stretching vibration in rhyolitic glasses
Satoshi Okumura, Michihiko Nakamura, and Satoru Nakashima

1663

The effect of radiation damage on local structure in the crystalline fraction of ZrSiO₄: Investigating the ²⁹Si NMR response to pressure in zircon and reidite
Ian Farnan, Etienne Balan, Chris J. Pickard, and Francesco Mauri

1668

The structural behavior of Al³⁺ in peralkaline melts and glasses in the system Na₂O-Al₂O₃-SiO₂
Bjorn O. Mysen, Amie Lucier, and George D. Cody

1689

Carbon isotope “stratigraphy” in a single graphite crystal: implications for the crystal growth mechanism of fluid-deposited graphite
M. Santosh, H. Wada, M. Satish-Kumar, and S.S. Binu-Lal

1697

Woodruffite: A new Mn oxide structure with 3×4 tunnels
Jeffrey E. Post, Peter J. Heaney, Christopher L. Cahill, and Larry W. Finger

1709

Low-temperature microdiamond aggregates in the Maksyutov Metamorphic Complex, South Ural Mountains, Russia
Benjamin C. Bostick, R.E. Jones, W.G. Ernst, Cynthia Chen, Mary L. Leech, and Rachel J. Beane

1724

Crystallization of AlPO₄-SiO₂ solid solutions from granitic melt and implications for P-rich melt inclusions in pegmatitic quartz
Ilya V. Veksler, Rainer Thomas, and Richard Wirth

1731

On the formation of peridotite-derived Os-rich PGE alloys
Frank E. Brenker, Anders Meibom, and Robert Frei

1741

Viscosity of hydrous rhyolitic melts inferred from kinetic experiments, and a new viscosity model
Youxue Zhang, Zhengjiu Xu, and Yang Liu

1753

Geothermobarometry and U-Pb Geochronology of metapelitic granulites and pelitic migmatites from the Lokoho region, Northern Madagascar
Robert Buchwaldt, Robert D. Tucker, and Robert F. Dymek

1769

The aperiodic states of zircon: an ab initio molecular dynamics study
Etienne Balan, Francesco Mauri, Chris J. Pickard, Ian Farnan, and Georges Calas

1796

Alacranite, As₈S₉: structural study of the holotype and re-assignment of the original chemical formula
Paola Bonazzi, Luca Bindi, Valentina Popova, Giovanni Pratesi, and Silvio Menchetti

1809

Stacking faults and twin boundaries in sphalerite crystals from the Trepca mines in Kosovo
Vesna Srot, Aleksander Recnik, Christina Scheu, Saso Sturm, and Breda Mirtic

1843

Introduction to the Environmental Mineralogy Special Issue

1844

Nanoscale mineralogy of arsenic in a region of New Hampshire with elevated As-concentrations in the groundwater
Satoshi Utsunomiya, Stephen C. Peters, Joel D. Blum, and Rodney C. Ewing

1866

Thermal behavior of dental enamel and geologic apatite: An infrared spectroscopic study
Jianmin Shi, Arndt Klocke, Ming Zhang, and Ulrich Bismayer

1872

Black carbon pollution of speleothems by fine urban aerosols in tourist caves
Gi Young Jeong, Soo Jin Kim, and Sae Jung Chang

1879

Decay-induced biomineralization of the saguaro cactus (Carnegiea gigantea)
Laurence A.J. Garvie

1889

The distribution of zeolites and their effects on the performance of a nuclear waste repository at Yucca Mountain, Nevada, U.S.A.
David L. Bish, David T. Vaniman, Steve J. Chipera, and J. William Carey

1903

Transformation of 2-line ferrihydrite to 6-line ferrihydrite under oxic and anoxic condition
Ravi K. Kukkadapu, John M. Zachara, James K. Fredrickson, Steven C. Smith, Alice C. Dohnalkova, and Colleen K. Russell

1915

Iron-rich precipitates in a mine drainage environment: Influence of pH on mineralogy
Enver Murad and Petr Roj??k

1919

Efflorescent iron sulfate minerals: Paragenesis, relative stability, and environmental impact
Jeanette K. Jerz and J. Donald Rimstidt

1933

Secondary mineralogy and microtextures of weathered sulfides and manganoan carbonates in mine waste-rock dumps, with implications for heavy-metal fixation
Gi Young Jeong and Byoung Yoon Lee

1943

Acquisition and evaluation of thermodynamic data for morenosite-retgersite equilibria at 0.1 MPa
I-Ming Chou and Robert R. Seal II

1949

On the thermochemistry of the solid solution between jarosite and its chromate analog
Christophe Drouet, Dirk Baron, and Alexandra Navrotsky

1955

The Composition and Morphology of Amphiboles from the Rainy Creek Complex, Near Libby, Montana
G.P. Meeker, A.M. Bern, I.K. Brownfield, H.A. Lowers, S.J. Sutley, T.M. Hoefen, and J.S.Vance

1979

A rapid and accurate procedure for the determination of refractive indices of regulated asbestos minerals
Shu-Chun Su

1983

Ferrous saponite from the Deccan Trap, India, and its application in adsorption and reduction of hexavalent chromium
G. Parthasarathy, B.M. Choudary, B. Sreedhar, A.C. Kunwar, and R. Srinivasan

2016

The reactivity of seven Mn-oxides with Cr³⁺_aq: A comparative analysis of a complex, environmentally important redox reaction
Robert M. Weaver and Michael F. Hochella Jr.

2028

Sorption mechanisms of Sr and Pb on zeolitized tuffs from the Nevada test site as a function of pH and ionic strength
Wooyong Um and Charalambos Papelis

1836

NEW MINERAL NAMES
John L. Jambor and Andrew C. Roberts

1835

ERRATUM: Why most dry rocks should cool wet, by M.J. Kohn (vol. 84, 570-580, 1999)