American Mineralogist, 2000, V 85, N 5-6, May-June.

ARTICLES 

E.J. Catlos, Sorena S. Sorensen, and T. Mark Harrison 
Th-Pb ion-microprobe dating of allanite 
633 

Luiz Carlos da Silva, Leo Afraneo Hartmann, Neal J. McNaughton,
and Ian Fletcher 
Zircon U-Pb SHRIMP dating of a Neoproterozoic overprint in
Paleoproterozoic granitic-gneissic terranes, southern Brazil 
649 

Turgay Karali, Nurdogan Can,Peter D. Townsend, Aled P.
Rowlands, and John M. Hanchar 
Radioluminescence and thermoluminescence of rare earth
element and phosphorus-doped zircon 
668 

Francois Holtz, Jacques Roux, Harald Behrens, and Michel
Pichavant 
Water solubility in silica and quartzofeldspathic melts 
682 

Claire-Isabelle Fialips-Guedon, Jean-Louis Robert, 
and Francois Delbove 
Experimental study of Cr incorporation in pargasite 
687 

Andrei Y. Barkov, Robert F.Martin, Tapio A.A. Halkoaho,
and Glenn Poirier 
The mechanism of charge compensation in Cu-Fe-PGE
thiospinels from the Penikat layered intrusion, Finland 
694 

Giovanni B. Andreozzi, Luisa Ottolini, Sergio Lucchesi, 
Giorgio Graziani, and Umberto Russo 
Crystal chemistry of the axinite-group
minerals: A multi-analytical approach
698 

Mario Tribaudino 
A transmission electron microscope investigation of the 
C2/c? P21/c phase transition in clinopyroxenes
along the diopside-enstatite (CaMgSi2O6-Mg2Si2O6) join 
707

Enver Murad and Janice L. Bishop 
The infrared spectrum of synthetic akaganeite, b-FeOOH 
716 

Jane V. Oglesby and Jonathan F. Stebbins 
29Si CPMAS NMR investigations of silanol-group minerals and hydrous 
aluminosilicate glasses 
722 

Laurence A.J. Garvie, Peter Rez,Jose R. Alvarez, Peter R.
Buseck, Alan J. Craven, and Rik Brydson 
Bonding in alpha-quartz (SiO2): A view of the unoccupied states 732 

Shan-Li Wang and Cliff T. Johnston 
Assignment of the structural OH stretching bands of gibbsite 
739 

Steven D. Jacobsen, Joseph R. Smyth, R. Jeffrey Swope, and
Robert I. Sheldon 
Two proton positions in the very strong hydrogen bond of serandite,
NaMn2[Si3O8(OH)] 
745 

David Virgo and Robert K. Popp 
Hydrogen deficiency in mantle-derived phlogopites 
753 

T. Nagai, T. Hattori, and T. Yamanaka 
Compression mechanism of brucite: An investigation by structural
refinement under pressure 
760 

Sean R. Shieh, Ho-kwang Mao, Jurgen Konzett, and Russell J.Hemley 
In-situ high pressure X-ray diffraction of phase E to 15 GPa 
765

Robert M. Hazen, Michelle B. Weinberger, Hexiong Yang, and
Charles T. Prewitt 
Comparative high-pressure crystal chemistry of wadsleyite,
b-(Mg1-xFex )2SiO4, with x = 0 and 0.25 
770 

Robert M. Hazen, Hexiong Yang, and Charles T. Prewitt 
High-pressure crystal chemistry of Fe3+-wadsleyite, b-Fe2.33Si0.67O4
778 

Petra Scheuermann, Ali Kutoglu, Michael Schosnig, and Edgar
Hoffer 
Structure and stability of the high-pressure phase,
 Ca3TiSi2(Al,Ti,Si)3 O14 
784 

Liping Wang, Roland C. Rouse,
Eric J. Essene, Donald R.
Peacor, and Youxue Zhang 
Carmichaelite, a new
hydroxyl-bearing titanate from
Garnet Ridge, Arizona 792 

Peter C. Burns 
A new uranyl phosphate chain in the structure of parsonsite 
801 

Joel D. Grice and Pete J. Dunn 
Crystal-structure determination of pinalite 
806 

Paulus B. Moore, Anthony R.Kampf, and P.K. Sen Gupta 
The crystal structure of philolithite, a trellis-like open framework 
based on cubic closest-packing of anions
810 

 D. Banerjee and H.W. Nesbitt 
XPS study of reductive dissolution of birnessite by H2SeO3 with
constraints on reaction mechanism
817 

Bruno Lanson, Victor A. Drits, Ewen Silvester, and Alain
Manceau 
Structure of H-exchanged hexagonal birnessite and its mechanism of
formation from Na-rich monoclinic buserite at low pH 
826

Helge Stanjek and Julius Schneider 
Anisotropic peak broadening analysis of a biogenic soil 
greigite (Fe3S4) with Rietveld analysis and
single peak fitting 
839 

Thomas Witzke, Reinhard Wegner, Thomas Doering,
Herbert Pollmann, and Walter Schuckmann 
Serrabrancaite, MnPO4·H2O, a new mineral from the Alto Serra
Branca pegmatite, Pedra Lavrada, Paraiba, Brazil 
847 

H.W. Nesbitt, M. Scaini, H.Hochst, G.M. Bancroft, 
A.G.Schaufuss, and R. Szargan 
Synchrotron XPS evidence for Fe2+S and Fe3+S surface species on
pyrite fracturesurfaces, and their 3D electronic states 
850 

LETTERS 


Kathryn A. Schubel, David C. Elbert, and David R. Veblen 
Incommensurate c-domain superstructures in calcian dolomite
from the Latemar buildup, Dolomites, Northern Italy 
858 

Qiang Zeng and Jonathan F.Stebbins 
Fluoride sites in aluminosilicate glasses: High-resolution 
19F NMR results 
863 

R. Thomas 
Determination of water contents of granite melt inclusions by 
confocal laser Raman microprobe spectroscopy 
868 

NEW MINERAL NAMES 
873 

BOOK REVIEWS 
878 

ERRATA 
879