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American Mineralogist: Journal of Earth and Planetary Materials

Vol. 100, no. 4        April 2015 Table of Contents

AMORPHOUS MATERIALS: PROPERTIES, STRUCTURE, AND DURABILITY
1013
Competition between two redox states in silicate melts: An in-situ experiment at the Fe K-edge and Eu L3-edge
Maria Rita Cicconi, Daniel R. Neuville, Isabelle Tannou, François Baudelet, Paul Floury, Eleonora Paris and Gabriele Giuli
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HIGHLIGHTS AND BREAKTHROUGHS
669
Clays are messy—also on Mars
Javier Cuadros
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671
Tweed, Twins, and Holes: A link between mineralogy and materials science
Wilfried Schranz
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672
Bursting the bubble of melt inclusions
Jacob B. Lowenstern
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INVITED CENTENNIAL ARTICLE
674
Mineralogy, materials science, energy, and environment: A 2015 perspective
Alexandra Navrotsky
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CROSSROADS IN EARTH AND PLANETARY MATERIALS
681
Block-by-block and layer-by-layer growth modes in coral skeletons
Jonathan Perrin, Daniel Vielzeuf, Angèle Ricolleau, Hervé Dallaporta, Solène Valton and Nicole Floquet
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ROEBLING MEDAL LECTURE
696
Toward theoretical mineralogy: A bond-topological approach
Frank C. Hawthorne
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INVESTIGATING PETROLOGIC INDICATORS OF MAGMATIC PROCESSES IN VOLCANIC ROCKS
714
Petalite under pressure: Elastic behavior and phase stability
Nancy L. Ross, Jing Zhao, Carla Slebodnick, Elinor C. Spencer and Bryan C. Chakoumakos
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722
Pre-eruptive magma mixing and crystal transfer revealed by phenocryst and microlite compositions in basaltic andesite from the 2008 eruption of Kasatochi Island volcano
Owen K. Neill, Jessica F. Larsen, Pavel E. Izbekov and Christopher J. Nye
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WHAT LURKS IN THE MARTIAN ROCKS AND SOIL? INVESTIGATIONS OF SULFATES, PHOSPHATES, AND PERCHLORATES
738
Akaganéite and schwertmannite: Spectral properties and geochemical implications of their possible presence on Mars
Janice L. Bishop, Enver Murad and M. Darby Dyar
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SPECIAL COLLECTION: MECHANISMS, RATES, AND TIMESCALES OF GEOCHEMICAL TRANSPORT PROCESSES IN THE CRUST AND MANTLE
747
Timescales of exhumation and cooling inferred by kinetic modeling: An example using a lamellar garnet pyroxenite from the Variscan Granulitgebirge, Germany
Thomas Müller, Hans-Joachim Massonne and Arne P. Willner
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SPECIAL COLLECTION: GLASSES, MELTS, AND FLUIDS, AS TOOLS FOR UNDERSTANDING VOLCANIC PROCESSES AND HAZARDS
760
Constraints on the origin of sub-effusive nodules from the Sarno (Pomici di Base) eruption of Mt. Somma-Vesuvius (Italy) based on compositions of silicate-melt inclusions and clinopyroxene
Rita Klébesz, Rosario Esposito, Benedetto De Vivo and Robert J. Bodnar
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774
Experiments and models on H2O retrograde solubility in volcanic systems
Amy G. Ryan, James K. Russell, Alexander R.L. Nichols, Kai-Uwe Hess and Lucy A. Porritt
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787
Melt inclusion CO2 contents, pressures of olivine crystallization, and the problem of shrinkage bubbles
Paul J. Wallace, Vadim S. Kamenetsky and Pablo Cervantes
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795
Spatio-temporal constraints on magma storage and ascent conditions in a transtensional tectonic setting: The case of the Terceira Island (Azores)
Vittorio Zanon and Adriano Pimentel
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806
Bubbles matter: An assessment of the contribution of vapor bubbles to melt inclusion volatile budgets
Lowell R. Moore, Esteban Gazel, Robin Tuohy, Alexander S. Lloyd, Rosario Esposito, Matthew Steele-MacInnis, Erik H. Hauri, Paul J. Wallace, Terry Plank and Robert J. Bodnar
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REGULAR ARTICLE
824
The origin and implications of clay minerals from Yellowknife Bay, Gale crater, Mars
Thomas F. Bristow, David L. Bish, David T. Vaniman, Richard V. Morris, David F. Blake, John P. Grotzinger, Elizabeth B. Rampe, Joy A. Crisp, Cherie N. Achilles, Doug W. Ming, Bethany L. Ehlmann, Penelope L. King, John C. Bridges, Jennifer L. Eigenbrode, Dawn Y. Sumner, Steve J. Chipera, John Michael Moorokian, Allan H. Treiman, Shaunna M. Morrison, Robert T. Downs, Jack D. Farmer, David Des Marais, Philippe Sarrazin, Melissa M. Floyd, Michael A. Mischna, and Amy C. McAdam
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837
The whole-block approach to measuring hydrogen diffusivity in nominally anhydrous minerals
Elizabeth Ferriss, Terry Plank, David Walker and Meredith Nettles
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852
Atom probe tomography of isoferroplatinum
Stephen W. Parman, David R. Diercks, Brian P. Gorman and Reid F. Cooper
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861
Structural investigation of (130) twins and rutile precipitates in chrysoberyl crystals from Rio das Pratinhas in Bahia (Brazil)
Sandra Drev, Matej Komelj, Matjaž Mazaj, Nina Daneu and Aleksander Rečnik
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872
Carbon speciation in silicate-C-O-H melt and fluid as a function of redox conditions: An experimental study, in situ to 1.7 GPa and 900 °C
Bjorn Mysen
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883
Kinetic behavior of partially dehydroxylated kaolinite
Victor A. Drits and Arkadiusz Derkowski
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897
The fall and rise of metamorphic zircon
Matthew J. Kohn, Stacey L. Corrie and Christopher Markley
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909
Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar—crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite
Roberta Oberti, Massimo Boiocchi, Frank C. Hawthorne, Neil A. Ball and George E. Harlow
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915
In-situ oxygen isotope and trace element geothermometry of rutilated quartz from Alpine fissures
Danielle Ziva Shulaker, Axel K. Schmitt, Thomas Zack and Ilya Bindeman
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926
Synchrotron micro-spectroscopic examination of Indonesian nickel laterites
Rong Fan and Andrea R. Gerson
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935
Density functional investigation of the thermo-physical and thermo-chemical properties of 2M1 muscovite
Gianfranco Ulian and Giovanni Valdrè
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945
Complex IR spectra of OH groups in silicate glasses: Implications for the use of the 4500 cm–1 IR peak as a marker of OH groups concentration
Charles Le Losq, George D. Cody and Bjorn O. Mysen
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VERSATILE MONAZITE: RESOLVING GEOLOGICAL RECORDS AND SOLVING CHALLENGES IN MATERIALS SCIENCE
951
Monazite, zircon, and garnet growth in migmatitic pelites as a record of metamorphism and partial melting in the East Humboldt Range, Nevada
Benjamin W. Hallett and Frank S. Spear
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THE SECOND CONFERENCE ON THE LUNAR HIGHLANDS CRUST AND NEW DIRECTIONS
973
Revised mineral and Mg# maps of the Moon from integrating results from the Lunar Prospector neutron and gamma-ray spectrometers with Clementine spectroscopy
Sarah T. Crites and Paul G. Lucey
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983
Low-pressure crystallization of a volatile-rich lunar basalt: A means for producing local anorthosites?
Nicholas J. DiFrancesco, Hanna Nekvasil, Donald H. Lindsley and G. Ustunisik
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FLUIDS IN THE CRUST
991
Experimental constraints on fluid-rock reactions during incipient serpentinization of harzburgite
Frieder Klein, Niya G. Grozeva, Jeffrey S. Seewald, Thomas M. McCollom, Susan E. Humphris, Bruce Moskowitz, Thelma S. Berquó and Wolf-Achim Kahl
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MINERALS IN THE HUMAN BODY
1003
Crystal chemical and structural modifications of erionite fibers leached with simulated lung fluids
Paolo Ballirano and Georgia Cametti
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