341

Anhydrite: An important sulfur binder limiting the climatic impact of subaerial volcanic eruptions
Marcus Nowak

343

Tweed, twins and holes
Ekhard K.H. Salje

352

The chemical behavior of fluids released during deep subduction based on fluid inclusions
Maria Luce Frezzotti and Simona Ferrando

378

In situ observation of the pyroxene-majorite transition in Na₂MgSi₅O₁₂ using synchrotron radiation and Raman spectroscopy of Na-majorite
Anna Dymshits, Igor Sharygin, Konstantin Litasov, Anton Shatskiy, Pavel Gavryushkin, Eiji Ohtani, Akio Suzuki and Kenichi Funakoshi

385

Prevalence of growth twins among anhedral plagioclase microlites
Carrie R. Brugger and Julia E. Hammer

396

Intrinsic conditions of magma genesis at the Lunar Crater Volcanic Field (Nevada) and implications for internal plumbing and magma ascent
Joaquín A. Cortés, Eugene I. Smith, Greg A. Valentine, Racheal Johnsen, Christine Rasoazanamparany, Elisabeth Widom, Mai Sas and Dawn Ruth

414

A rock fragment related to the magnesian suite in lunar meteorite Allan Hills (ALHA) 81005
Allan H. Treiman and Juliane Gross

427

Trinitite redux: Mineralogy and petrology
G. Nelson Eby, Norman Charnley, Duncan Pirrie, Robert Hermes, John Smoliga and Gavyn Rollinson

442

Pauloabibite, trigonal NaNbO₃, isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil
Luiz A.D. Menezes Filho, Daniel Atencio, Marcelo B. Andrade, Robert T. Downs, Mário L.S.C. Chaves, Antônio W. Romano, Ricardo Scholz and Aba I.C. Persiano

447

Kojonenite, a new palladium tin telluride mineral from the Stillwater Layered Igneous Intrusion, Montana, U.S.A.
Chris J. Stanley and Anna Vymazalová

451

Cathodoluminescence dependence on feldspar mineral structure and implications for forensic geology
Sarah A. Brokus, Danielle K. Silletti, J. Mark Lunderberg, Paul A. DeYoung, Graham F. Peaslee, Dyanne E. Carpenter and JoAnn Buscaglia

459

Non-invasive assessment of the formation of tourmaline nodules by X-ray microtomography and computer modeling
Luca Valentini, Barbara Marchesini, Matteo Parisatto, Diego Perugini and Gilberto Artioli

466

Alkali influence on the water speciation and the environment of protons in silicate glasses revealed by ¹H MAS NMR spectroscopy
Charles Le Losq, George D. Cody and Bjorn O. Mysen

474

Carbonate mineralization in percolated olivine aggregates: Linking effects of crystallographic orientation and fluid flow
Steve Peuble, Muriel Andreani, Marguerite Godard, Philippe Gouze, Fabrice Barou, Bertrand Van de Moortele, David Mainprice and Bruno Reynard

483

The catalytic effect of bound extracellular polymeric substances excreted by anaerobic microorganisms on Ca-Mg carbonate precipitation: Implications for the “dolomite problem”
Fangfu Zhang, Huifang Xu, Evgenya S. Shelobolina, Hiromi Konishi, Brandon Converse, Zhizhang Shen and Eric E. Roden

495

Experimental study along the magnesio-hornblende–glaucophane join
Jie Lei, David M. Jenkins and Kiyotaka Ishida

510

Direct observation of Ca-Na ordering and structure polarity in Ca-rich intermediate plagioclase feldspar with incommensurate modulated structure
Huifang Xu

516

Stability and adhesion of calcite/montmorillonite assembly
W. Sekkal, A. Zaoui and I. Shahrour

522

Experimental and modeled chlorine solubilities in aluminosilicate melts at 1 to 7000 bars and 700 to 1250 °C: Applications to magmas of Augustine Volcano, Alaska
James D. Webster, Francesco Vetere, Roman E. Botcharnikov, Beth Goldoff, Alexander McBirney and Angela L. Doherty

536

Cation order-disorder in Fe-bearing pyrope and grossular garnets: A ²⁷Al and ²⁹Si MAS NMR and ⁵⁷Fe Mössbauer spectroscopy study
Aaron C. Palke, Jonathan F. Stebbins, Charles A. Geiger and Gerold Tippelt

548

Trace and minor elements in galena: A reconnaissance LA-ICP-MS study
Luke George, Nigel J. Cook, Cristiana L. Ciobanu and Benjamin P. Wade

570

A refined monoclinic structure for a variety of “hydrohematite”
Kristina M. Peterson, Peter J. Heaney, Jeffrey E. Post and Peter J. Eng

580

Mössbauer spectroscopic study of natural eosphorite, [(Mn,Fe)AlPO₄(OH)₂H₂O]
Antoine Van Alboom,Valdirene Gonzaga de Resende, Geraldo Magela da Costa and Eddy De Grave

588

P-V-T equation of state of Ca₃Cr₂Si₃O₁₂ uvarovite garnet by using a diamond-anvil cell and in-situ synchrotron X-ray diffraction
Dawei Fan, Jingui Xu, Maining Ma, Shuyi Wei, Bo Zhang, Jing Liu and Hongsen Xie

598

Possible new Ca-REE-Bi phosphate minerals from a tungsten-rich calcsilicate skarn, Sierra Nevada Mountains, California
Beverly J. Berekian, Diane Clemens-Knott and Chi Ma

602

Klebelsbergite, Sb₄O₄SO₄(OH)₂: Stability relationships, formation in Nature and refinement of its structure
Adam J. Roper, Peter Leverett, Timothy D. Murphy, Peter A. Williams and David E. Hibbs

608

Balestraite, Kli₂Vsi₄O₁₀O₂, the first member of the mica group with octahedral V⁵⁺
Giovanni O. Lepore, Luca Bindi, Alberto Zanetti, Marco E. Ciriotti, Olaf Medenbach and Paola Bonazzi

615

Prediction of enthalpies of formation of hydrous sulfates
Sophie Billon and Philippe Vieillard

628

Complete substitution of Fe²⁺ by Mg in Fe₄O₅: The crystal structure of the Mg₂Fe₂O₅ end-member
Tiziana Boffa Ballaran, Laura Uenver-Thiele and Alan B. Woodland

633

The effect of H₂O on F and Cl solubility and solution mechanisms of in aluminosilicate melts at high pressure and high temperature
Celia Dalou and Bjorn O. Mysen

644

The elasticity of MgAl₂O₄–MnAl₂O₄ spinels by Brillouin scattering and an empirical approach for bulk modulus prediction
Enrico Bruschini, Sergio Speziale, Giovanni B. Andreozzi, Ferdinando Bosi and Ulf Hålenius

652

Synthesis of stoichiometric nickel aluminate spinel nanoparticles
Md. Hasan, John Drazin, Sanchita Dey and Ricardo H.R. Castro

658

NEW MINERAL NAMES

664

Advances in ⁴⁰Ar/³⁹Ar Dating: From Archaeology to Planetary Sciences
Michael Cosca

665

American Mineralogist thanks the year 2014 reviewers

378

In situ observation of the pyroxene-majorite transition in Na₂MgSi₅O₁₂ using synchrotron radiation and Raman spectroscopy of Na-majorite
Anna Dymshits, Igor Sharygin, Konstantin Litasov, Anton Shatskiy, Pavel Gavryushkin, Eiji Ohtani, Akio Suzuki and Kenichi Funakoshi

385

Prevalence of growth twins among anhedral plagioclase microlites
Carrie R. Brugger and Julia E. Hammer

414

A rock fragment related to the magnesian suite in lunar meteorite Allan Hills (ALHA) 81005
Allan H. Treiman and Juliane Gross

427

Trinitite redux: Mineralogy and petrology
G. Nelson Eby, Norman Charnley, Duncan Pirrie, Robert Hermes, John Smoliga and Gavyn Rollinson

442

Pauloabibite, trigonal NaNbO₃, isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil
Luiz A.D. Menezes Filho, Daniel Atencio, Marcelo B. Andrade, Robert T. Downs, Mário L.S.C. Chaves, Antônio W. Romano, Ricardo Scholz and Aba I.C. Persiano

451

Cathodoluminescence dependence on feldspar mineral structure and implications for forensic geology
Sarah A. Brokus, Danielle K. Silletti, J. Mark Lunderberg, Paul A. DeYoung, Graham F. Peaslee, Dyanne E. Carpenter and JoAnn Buscaglia

466

Alkali influence on the water speciation and the environment of protons in silicate glasses revealed by ¹H MAS NMR spectroscopy
Charles Le Losq, George D. Cody and Bjorn O. Mysen

474

Carbonate mineralization in percolated olivine aggregates: Linking effects of crystallographic orientation and fluid flow
Steve Peuble, Muriel Andreani, Marguerite Godard, Philippe Gouze, Fabrice Barou, Bertrand Van de Moortele, David Mainprice and Bruno Reynard

495

Experimental study along the magnesio-hornblende–glaucophane join
Jie Lei, David M. Jenkins and Kiyotaka Ishida

522

Experimental and modeled chlorine solubilities in aluminosilicate melts at 1 to 7000 bars and 700 to 1250 °C: Applications to magmas of Augustine Volcano, Alaska
James D. Webster, Francesco Vetere, Roman E. Botcharnikov, Beth Goldoff, Alexander McBirney and Angela L. Doherty

536

Cation order-disorder in Fe-bearing pyrope and grossular garnets: A ²⁷Al and ²⁹Si MAS NMR and ⁵⁷Fe Mössbauer spectroscopy study
Aaron C. Palke, Jonathan F. Stebbins, Charles A. Geiger and Gerold Tippelt

548

Trace and minor elements in galena: A reconnaissance LA-ICP-MS study
Luke George, Nigel J. Cook, Cristiana L. Ciobanu and Benjamin P. Wade

570

A refined monoclinic structure for a variety of “hydrohematite”
Kristina M. Peterson, Peter J. Heaney, Jeffrey E. Post and Peter J. Eng

598

Possible new Ca-REE-Bi phosphate minerals from a tungsten-rich calcsilicate skarn, Sierra Nevada Mountains, California
Beverly J. Berekian, Diane Clemens-Knott and Chi Ma

602

Klebelsbergite, Sb₄O₄SO₄(OH)₂: Stability relationships, formation in Nature and refinement of its structure
Adam J. Roper, Peter Leverett, Timothy D. Murphy, Peter A. Williams and David E. Hibbs

608

Balestraite, Kli₂Vsi₄O₁₀O₂, the first member of the mica group with octahedral V⁵⁺
Giovanni O. Lepore, Luca Bindi, Alberto Zanetti, Marco E. Ciriotti, Olaf Medenbach and Paola Bonazzi

615

Prediction of enthalpies of formation of hydrous sulfates
Sophie Billon and Philippe Vieillard

628

Complete substitution of Fe²⁺ by Mg in Fe₄O₅: The crystal structure of the Mg₂Fe₂O₅ end-member
Tiziana Boffa Ballaran, Laura Uenver-Thiele and Alan B. Woodland