American Mineralgist, 2006, V 91, N 2-3, February - March.

LETTERS  
  
451
Icosahedral coordination of phosphorus in 
the crystal structure of melliniite, a new phosphide 
mineral from the Northwest Africa 1054 acapulcoite 
Giovanni Pratesi, Luca Bindi, and Vanni Moggi-Cecchi 

455
Mechanism for the dissolution of olivine series
minerals in acidic solutions 
Yun Liu, Amanda A. Olsen, and J. Donald Rimstidt 

459
High-pressure behavior of synthetic antigorite
in the MgO-SiO2-H2O system from Raman spectroscopy 
B. Reynard and B. Wunder 

463
Sinoite (Si2N2O) shocked at pressures of
28 to 64 GPa 
Toshimori Sekine, Hongliang He, Takamichi Kobayashi, 
and Kazusato Shibata 

467
Laser Raman spectroscopic measurements of water 
in unexposed glass inclusions 
Rainer Thomas, Vadim S. Kamenetsky, and Paul Davidson 

471
The Mars/Earth dichotomy in Mg/Si and Al/Si 
ratios: Is it real? 
Justin Filiberto, Hanna Nekvasil, and Donald H. Lindsley 

475
Equation of state of CaIrO3-type MgSiO3 
up to 144 GPa 
Shigeaki Ono, Takumi Kikegawa, and Yasuo Ohishi 

479
Synchrotron infrared spectroscopy of synthetic 
Na(NaMg)Mg5Si8O22(OH)2 up to 30 GPa: Insight on 
a new high-pressure amphibole polymorph 
Gianluca Iezzi, Zhenxian Liu, and Giancarlo Della Ventura 






PRESIDENTIAL ADDRESS  
  
229
Elastic properties of minerals and the 
influence of phase transitions 
Michael A. Carpenter 


ARTICLES  
  
247
Pressure-induced hydration in zeolite 
tetranatrolite 
Yongjae Lee, Joseph A. Hriljac, John B. Parise, 
and Thomas Vogt 

252
Annealing experiments on induced fission tracks 
in apatite: Measurements of horizontal-confined 
track lengths and track densities in basal sections 
and randomly oriented grains 
Carlos A. Tello, Rosane Palissari, Julio C. Hadler, 
Pedro J. Iunes, Sandro Guedes, Eduardo A.C. Curvo, 
and Sergio R. Paulo 

261
Alpersite (Mg,Cu)SO4·7H2O, a new mineral of the 
melanterite group, and cuprian pentahydrite: Their 
occurrence within mine waste 
Ronald C. Peterson, Jane M. Hammarstrom, and 
Robert R. Seal II 

270
Application of a new vanadium valence oxybarometer 
to basaltic glasses from the Earth, Moon, and Mars 
Jim M. Karner, Steven R. Sutton, James J. Papike, 
Charles K. Shearer, John H. Jones, and Matt Newville 

278
Quantitative polarized infrared analysis of 
trace OH in populations of randomly oriented mineral grains 
Paul D. Asimow, Leo C. Stein, Jed L. Mosenfelder, 
and George R. Rossman 

285
Hydrogen incorporation in olivine from 2–12 GPa 
Jed L. Mosenfelder, Natalia I. Deligne, Paul D. Asimow, 
and George R. Rossman 

295
A numerical model for steady-state temperature 
distributions in solid-medium high-pressure cell assemblies 
John Hernlund, Kurt Leinenweber, Darren Locke, 
and James A. Tyburczy 

306
Thermodynamics and kinetics of cation ordering in 
natural and synthetic Mg(Al,Fe3+)2O4 spinels from in 
situ high-temperature X-ray diffraction 
F. Martignago, G.B. Andreozzi, and A. Dal Negro 

313
Kinetics of cation ordering in natural 
Mg(Al,Cr3+)2O4 spinels 
F. Princivalle, F. Martignago, and A. Dal Negro 

319
Equations of state and structures of andalusite to 
9.8 GPa and sillimanite to 8.5 GPa 
Jason B. Burt, Nancy L. Ross, Ross J. Angel, and Mario Koch 

327
Equation of state and phase transition in 
KAlSi3O8 hollandite at high pressure 
Tristan Ferroir, Tsuyoshi Onozawa, Takehiko Yagi, 
Sebastien Merkel, Nobuyoshi Miyajima, Norimasa Nishiyama, 
Tetsuo Irifune, and Takumi Kikegawa 

333
A novel arrangement of silicate tetrahedra in 
the uranyl silicate sheet of oursinite, 
(Co0.8Mg0.2)[(UO2)(SiO3OH)]2(H2O)6 
Karrie-Ann Kubatko and Peter C. Burns 

337
Aluminum substitution in stishovite and MgSiO3 
perovskite: High-resolution 27Al NMR 
Jonathan F. Stebbins, Lin-Shu Du, Kimberly Kelsey, 
Hiroshi Kojitani, Masaki Akaogi, and Shigeaki Ono 

344
The effect of chlorine on the viscosity of 
Na2O-Fe2O3-Al2O3-SiO2 melts 
Milada Zimova and Sharon Webb 

353
TEM imaging and analysis of microinclusions 
in diamonds: A close look at diamond-growing fluids 
Ofra Klein-BenDavid, Richard Wirth, and Oded Navon 

366
A partial molar volume for ZnO in silicate melts
M. Potuzak, D.B. Dingwell, B. Ledda, and P. Courtial 

375
Garnet-spinel intergrowths in ultrahigh-temperature 
granulite, Eastern Ghats, India: Possible evidence 
of an early Tschermak-rich orthopyroxene during
prograde metamorphism 
Kaushik Das, Sankar Bose, Ichiro Ohnishi, and 
Somnath Dasgupta 

385
The partial molar volume of Fe2O3 in alkali 
silicate melts: Evidence for an average Fe3+ 
coordination number near five 
Qiong Liu and Rebecca A. Lange 

394
The crystal structure of a second antigorite 
polysome (m = 16), by single-crystal synchrotron diffraction 
Gian Carlo Capitani and Marcello Mellini 

400
Oxide melt solution calorimetry of sulfides: 
Enthalpy of formation of sphalerite, galena, 
greenockite, and hawleyite 
Suraj Deore and Alexandra Navrotsky 

404
An experimental determination of the effect 
of pressure on the Fe3+/EFe ratio of an anhydrous 
silicate melt to 3.0 GPa 
Hugh St.C. O'Neill, Andrew J. Berry, Catherine C. McCammon, 
Kasthuri D. Jayasuriya, Stewart J. Campbell, 
and Garry Foran 

413
Evolution of product phase assemblages during 
thermal decomposition of muscovite under strong 
disequilibrium conditions 
Karine Devineau, Bertrand Devouard, Frederic Villieras, 
Francois Faure, Jean-Luc Devidal, and Alain Kohler 

425
Synthetic P21/m amphiboles in the system 
Li2O-Na2O-MgO-SiO2-H2O (LNMSH) 
Gianluca Iezzi, Giancarlo Della Ventura, 
and Mario Tribaudino 

430
Incongruent dissolution of wollastonite measured
with vertical scanning interferometry 
Elisabeth Green and Andreas Luttge 

435
Experiments on CaCO3-MgCO3 solid solutions at 
high pressure and temperature 
Alessandra Buob, Robert W. Luth, Max W. Schmidt, 
and Peter Ulmer 

441
Calorimetric data for naturally occurring 
magnesiocarpholite and ferrocarpholite 
Christian Bertoldi, Edgar Dachs, and Thomas Theye 



446
Clinopyroxene exsolution in wollastonite from 
Namaqualand granulite, South Africa 
Yusuke Seto, Shugo Ohi, Norimasa Shimobayashi, 
Masao Kitamura, Akira Miyake, Yoshikuni Hiroi, 
and Geoffrey H. Grantham 

483
REVIEWERS  

485
ERRATUM  

Variability of apatite fission-track annealing 
kinetics: III. Extrapolation to geological time 
scales, Richard A. Ketcham, Raymond A. Donelick, 
and William D. Carlson (vol. 84, pages 1235-1255, 1999). 

487
BOOK REVIEW  

Florie Caporuscio 
MINERALS FIRST DISCOVERED ON THE TERRITORY OF 
THE FORMER SOVIET UNION by Igor V. Pekov. 
Ocean Pictures, Moscow, 369 pages.