1215

Concentric slow cooling of a low-P–high-T terrane: Evidence from 1600–1300 Ma mica dates in the 1780–1700 Ma Black Hills Orogen, South Dakota, U.S.A.
Peter S. Dahl and Kenneth A. Foland

1245

Forward modeling of the effects of mixed volatile reaction, volume diffusion, and formation of submicroscopic exsolution lamellae on calcite-dolomite thermometry
Thomas Müller, Lukas P. Baumgartner, C. Tom Foster Jr., and Gregory T. Roselle

1273

Dehydrogenation of kaersutitic amphibole under electron beam excitation recorded by changes in Fe³⁺/ΣFe: An EMP and SIMS study
C. Wagner, E. Deloule, M. Fialin, and P.L. King

1282

Protonation in germanium equivalents of ringwoodite, anhydrous phase B, and superhydrous phase B
Sylvia-Monique Thomas, Monika Koch-Müller, Volker Kahlenberg, Rainer Thomas, Dieter Rhede, Richard Wirth, and Bernd Wunder

1312

Stoichiometry of synthetic ulvöspinel single crystals
Ferdinando Bosi, Ulf Hålenius, and Henrik Skogby

1317

Thermal behavior and structural transformation in the chabazite-type zeolite willhendersonite, KCaAl₃Si₃O₁₂·5H₂O
R.X. Fischer, V. Kahlenberg, C.L. Lengauer, and E. Tillmanns

1338

Crystal chemistry of the mixed-layer sequence talc–talc-smectite–smectite from submarine hydrothermal vents
Javier Cuadros, Vesselin M. Dekov, and Saverio Fiore

1424

Equation of state and crystal structure of a new germanate post-titanite phase
Fabrizio Nestola, Péter Németh, Ross J. Angel, and Peter R. Buseck

1483

ERRATUM: Accuracy of equation-of-state formulations by R.E. Cohen, O. Gulseren, and R.J. Hemley (vol. 85, p. 338–344, 2000: Erratum DOI: 10.2138/am.2008.526).

1478

Identification of randomly interstratified illite/smectite with basal peak widths
Il Mo Kang, Myung Hun Kim, Yungoo Song, and Hi-Soo Moon

1201

Hydrothermal synthesis of hematite spherules and jarosite: Implications for diagenesis and hematite spherule formation in sulfate outcrops at Meridiani Planum, Mars
D.C. Golden, D.W. Ming, R.V. Morris, and T.G. Graff

1230

Monazite ages from carbonatites and highgrade assemblages along the Kambam Fault (Southern Granulite Terrane, South India)
Elizabeth J. Catlos, Chandra S. Dubey, and Poovalingam Sivasubramanian

1260

A low-temperature phase diagram for ilmenite-rich compositions in the system Fe₂O₃-FeTiO₃
Benjamin P. Burton, Peter Robinson, Suzanne A. McEnroe, Karl Fabian, and Tiziana Boffa Ballar

1295

Andreyivanovite: A second new phosphide from the Kaidun meteorite
Michael Zolensky, Matthieu Gounelle, Takashi Mikouchi, Kazumasa Ohsumi, Loan Le, Kenji Hagiya, and Osamu Tachikawa

1300

The crystal chemistry of whitlockite and merrillite and the dehydrogenation of whitlockite to merrillite
John M. Hughes, Bradley L. Jolliff, and John Rakovan

1306

Single-crystal elastic properties of (Mg_0.987,Fe_0.013)O to 9 GPa
H.J. Reichmann, S.V. Sinogeikin, and J.D. Bass

1326

The kinetics and mechanisms of schwertmannite transformation to goethite and hematite under alkaline conditions
Lois E. Davidson, Samuel Shaw, and Liane G. Benning

1349

Crystal chemical and structural characterization of fibrous tremolite from Susa Valley, Italy, with comments on potential harmful effects on human health
Paolo Ballirano, Giovanni B. Andreozzi, and Girolamo Belardi

1356

Thermodynamic properties of CaTh(PO₄)₂ synthetic cheralite
Karin Popa, Tatiana Shvareva, Lena Mazeina, Eric Colineau, Franck Wastin, Rudy J.M. Konings, and Alexandra Navrotsky

1363

A computational study of order-disorder phenomena in Mg₂TiO₄ spinel (qandilite)
Erika J. Palin, Andrew M. Walker, and Richard J. Harrison

1373

Mineralogical characterization of silica sinters from the El Tatio geothermal field, Chile
M. Garcia-Valles, J.L. Fernandez-Turiel, D. Gimeno-Torrente, J. Saavedra-Alonso, and S. Martinez-Manent

1384

Influence of multi-electron excitation on EXAFS spectroscopy of trivalent rare-earth ions and elucidation of change in hydration number through the series
Atsuyuki Ohta, Hiroyuki Kagi, Hiroshi Tsuno, Masaharu Nomomura, and Iwaoao Kawabe

1393

Pressure-induced over-hydration and water ordering in gismondine: A synchrotron powder diffraction study
Silvia Ori, Simona Quartieri, Giovanna Vezzalini, and Vladimir Dmitriev

1404

⁵⁷Fe M??ssbauer study of the oxidation state of iron in stilpnomelane from granite pegmatites in Poland
D. Malczewski and E. Popiel

1412

Constraints on structural models of ferrihydrite as a nanocrystalline material
D.G. Rancourt and J.-F. Meunier

1418

Pb⁺ irradiation of synthetic zircon (ZrSiO₄): Infrared spectroscopic investigation
Ming Zhang, Lynn A. Boatner, Ekhard K.H. Salje, S. Honda, and Rodney C. Ewing

1429

Synthetic hypersilicic Cl-bearing mica in the phlogopite-celadonite join: A multimethodical characterization of the missing link between di- and tri-octahedral micas at high pressures
Sabrina Nazzareni, Paola Comodi, Luca Bindi, Oleg G. Safonov, Yuriy A. Litvin, and Leonid L. Perchuk

1437

The effect of crystal-melt partitioning on the budgets of Cu, Au, and Ag
Adam C. Simon, Philip A. Candela, Philip M. Piccoli, Michael Mengason, and Leah Englander

1449

Thermodynamics of dehydration in analcime: Absorption calorimetry and equilibrium observations
Jie Wang and Philip S. Neuhoff

1460

Accommodation of the carbonate ion in fluorapatite synthesized at high pressure
Michael E. Fleet and Xi Liu

1470

Unusual Al-Si ordering in calcic scapolite, Me_79.6, with increasing temperature
Sytle M. Antao and Ishmael Hassan

1481

BOOK REVIEW: MINERALOGY AND OPTICAL MINERALOGY by M. Darby Dyar and Mickey E. Gunter, Illustrations and animations by Dennis Tasa. (2007) Mineralogical Society of America, Chantilly, Virginia (http://www.minsocam.org/MSA/DGTtxt). 708 p. + DVD-ROM (for PC and Mac). ISBN: 978-0-939950-81-2.
Juergen Reinhardt