261

Petrologic Mineralogy—the study of minerals in context: A memorial in honor of Charles V. Guidotti
M. Darby Dyar, Edward S. Grew, Darrell J. Henry, and Francesco P. Sassi

283

Boralsilite, Al₁₆B₆Si₂O₃₇, and “boron-mullite:” Compositional variations and associated phases in experiment and nature
Edward S. Grew, Heribert A. Graetsch, Birgit Pöter, Martin G. Yates, Ian Buick, Heinz-Jürgen Bernhardt, Werner Schreyer, Günter Werding, Christopher J. Carson, and Geoffrey L. Clarke

315

Wagnerite in a cordierite-gedrite gneiss: Witness of long-term fluid-rock interaction in the continental crust (Ile d’Yeu, Armorican Massif, France)
Pavel Pitra, Philippe Boulvais, Vladimir Antonoff, and Hervé Diot

438

Beneath the Stillwater Complex: Petrology and geochemistry of quartz-plagioclase-cordierite (or garnet)-orthopyroxene-biotite ±spinel hornfels, Mountain View area, Montana
Jennifer A. Thomson

463

Environmental parameters affect the physical properties of fast-growing magnetosomes
Damien Faivre, Nicolas Menguy, Mihály Pósfai, and Dirk Schüler

470

In situ Raman spectroscopy measurements of MgAl₂O₄ spinel up to 1400 °C
Sarah P. Slotznick and Sang-Heon Shim

477

Vibrational properties of δ-AlOOH under pressure
Jun Tsuchiya, Taku Tsuchiya, and Renata M. Wentzcovitch

483

Mössbauer spectroscopic study of synthetic leucophosphite, KFe₂(PO₄)₂(OH)·2H₂O
V.G. de Resende, G.M. da Costa, E. De Grave, and A. Van Alboom

499

ERRATUM: Measurement of U-Pb ages of uraninite and davidite by laser ablation-HR-ICP-MS by Don Chipley, Paul Polito, and T. Kurtis Kyser (vol. 92, p. 1925–1935, 2007: Erratum DOI: 10.2138/am.2008.510).
Don Chipley, Paul Polito, and T. Kurtis Kyser

488

Rh??nite in Luna 24 pyroxenes: First find from the Moon, and implications for volatiles in planetary magmas
Allan H. Treiman

492

New high-pressure B2 phase of FeS above 180 GPa
Nagayoshi Sata, Hiroaki Ohfuji, Kei Hirose, Hisao Kobayashi, Yasuo Ohishi, and Naohisa Hirao

495

Magnesium K-edge EXAFS study of bond-length behavior in synthetic pyrope-grossular garnet solid solutions
Simona Quartieri, Federico Boscherini, Chiara Dalconi, Gianluca Iezzi, Carlo Meneghini, and Roberta Oberti

263

Why is amazonitic K-feldspar an earmark of NYF-type granitic pegmatites? Clues from hybrid pegmatites in Madagascar
Robert F. Martin, Caterina De Vito, and Federico Pezzotta

270

Metamorphosed Ordovician Fe- and Mn-rich rocks in south-central Maine: From peri-Gondwanan deposition through Acadian metamorphism
David P. West Jr., Martin G. Yates, Christopher Gerbi, and Nellie Q. Barnard

300

Prograde muscovite-rich pseudomorphs as indicators of conditions during metamorphism: An example from NW Maine
Barbara L. Dutrow, C.T. Foster Jr., and Jennifer Whittington

327

Mineral chemistry of Ti-rich biotite from pegmatite and metapelitic granulites of the Kerala Khondalite Belt (southeast India): Petrology and further insight into titanium substitutions
Bernardo Cesare, Madhusoodhan Satish-Kumar, Giuseppe Cruciani, Shabeer Pocker, and Luca Nodari

339

Multiple titanium substitutions in biotites from high-grade metapelitic xenoliths (Euganean Hills, Italy): Complete crystal chemistry and appraisal of petrologic control
Raffaele Sassi, Giuseppe Cruciani, Claudio Mazzoli, Luca Nodari, and John Craven

351

Proto-polymorphs of jimthompsonite and chesterite in contact-metamorphosed serpentinites from Japan
Hiromi Konishi, Peter R. Buseck, Huifang Xu, and Xiaochun Li

360

Silicate garnet: A micro to macroscopic (re)view
Charles A. Geiger

373

Monazite occurrence, chemistry, and chronology in the granitoid rocks of the Lachlan Fold Belt, Australia: An electron microprobe study
Aaron B. Kelts, Minghua Ren, and Elizabeth Y. Anthony

384

Single-crystal ⁴⁰Ar/³⁹Ar age variation in muscovite of the Gassetts Schist and associated gneiss, Vermont Appalachians
Willis E. Hames, John T. Cheney, and Robert J. Tracy

396

Single-crystal X-ray studies of trioctahedral micas coexisting with dioctahedral micas in metamorphic sequences from western Maine
M.F. Brigatti, C.V. Guidotti, D. Malferrari, and F.P. Sassi

409

Tourmaline chemistry and the IIIB site
Christine M. Clark, Eva R. Wadoski, and Emily D. Freeman

414

The octahedral sheet of metamorphic 2M₁-phengites: A combined EMPA and AXANES study
Giannantonio Cibin, Gianfelice Cinque, Augusto Marcelli, Annibale Mottana, and Raffaele Sassi

426

Crystal chemistry of phlogopite from Vulture-S. Michele Subsynthem volcanic rocks (Mt. Vulture, Italy) and volcanological implications
Silvia Matarrese, Emanuela Schingaro, Fernando Scordari, Francesco Stoppa, Gianluigi Rosatelli, Giuseppe Pedrazzi, and Luisa Ottolini

451

Correlation between crystallization pressure and structural parameters of phengites
Nadia Curetti, Giovanni Ferraris, and Gabriella Ivaldi

456

The modular structure of dovyrenite, Ca₆Zr[Si₂O₇]₂(OH)₄: Alternate stacking of tobermorite and rosenbuschite-like units
Milen Kadiyski, Thomas Armbruster, Evgeny V. Galuskin, Nikolay N. Pertsev, Aleksander E. Zadov, Irina O. Galuskina, Roman Wrzalik, Piotr Dzierzanowski, and Evgeny V. Kislov