American Mineralogist, 2000, V 85, N 9, September.

Michael D. Higgins
Measurement of crystal size distributions  
1105 

Heribert Walter, Knut Roselieb,Heinz B?ttner, and Matthias
Rosenhauer
Pressure dependence of the solubility
of Ar and Kr in melts of the system SiO2-NaAlSi2O6    
1117 

Bjorn O. Mysen and Kevin Wheeler
Solubility behavior of water in haploandesitic melts at high pressure
and high temperature   
1128 

Nora H. de Leeuw, Stephen C. Parker, C. Richard A. Catlow, and
G. David Price
Proton-containing defects at forsterite {010} tilt grain boundaries and
stepped surfaces   
1143 

Nicola C. Richmond and John P.Brodholt
Incorporation of Fe3+ into forsterite and wadsleyite   
1155 

Akira Miyake, Katsuyuki Kawamura, and Masao Kitamura
Molecular dynamics simulation of Al/Si-ordered plagioclase feldspar   
1159 

Giovanni B. Andreozzi, Francesco Princivalle, Henrik Skogby, and
Antonio Della Giusta
Cation ordering and structural variations with temperature in
MgAl2O4 spinel: An X-ray single-crystal study    
1164 

Gabriele Giuli, Giovanni Pratesi,  Marcello Corazza, and Curzio  Cipriani
Aluminium coordination in tektites: A XANES study   
1172 

Reinhard X. Fischer and Hartmut Schneider
Crystal structure of Cr-mullite   
1175 

Dawn E. Janney, J.M. Cowley,  and Peter R. Buseck
Structure of synthetic 2-line ferrihydrite by electron nanodiffraction   
1180 

Ishmael Hassan
Transmission electron microscopy study of gaudefroyite, Ca8Mn3+6[(BO3)6(CO3)2O6]   
1188

Cristiano Ferraris, Christian Chopin, and Roland Wessicken
Nano- to micro-scale decompression products in ultrahigh-pressure
phengite: HRTEM and AEM study, and some petrological implications   
1195 

Toshihiro Kogure and Jillian F. Banfield
New insights into the mechanism for chloritization of biotite using polytype
analysis   
1202 

Dirk Bosbach, Laurent Charlet, Barry Bickmore, and Michael F. Hochella Jr.
The dissolution of hectorite: In-situ, real-time observations using atomic
 force microscopy   
1209 

John M. Hanchar, Kathryn L. Nagy, Paul Fenter, Robert J. Finch, Donald J. Beno, 
and Neil C. Sturchio
Quantification of minor phases in growth kinetics experiments with
powder X-ray diffraction    
1217 

Holger Lindgreen, Victor A. Drits, Boris A. Sakharov, Alfred L. Salyn, Per Wrang, 
and Lidia G. Dainyak
Illite-smectite structural changes during metamorphism in black Cambrian Alum shales
from the Baltic area   
1223 

Jennifer R. Verkouteren and Ann G. Wylie
The tremolite-actinolite-ferro-actinolite series: Systematic relationships
among cell parameters, composition, optical properties, and habit, and
evidence of discontinuities   
1239 

Charles A. Geiger, Thomas Armbruster, Vladimir Khomenko, and Simona Quartieri
Cordierite I: The coordination of  Fe2+    
1255 

B.A. Kolesov and C.A. Geiger Cordierite II: 
The role of CO2 and H2O  
1265 

Maria Franca Brigatti, Cristina Lugli, Luciano Poppi, Eugene E. Foord, and Daniel E. Kile
Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak
batholith (central Colorado)
1275 

Atsushi Kyono, Mitsuyoshi Kimata, and Masahiro Shimizu
The crystal structure of TlAlSiO4: The role of inert pairs in exclusion of Tl from silicate 
minerals    
1287 

C.L. Cahill and P.C. Burns
The structure of agrinierite: a Sr-containing uranyl oxide hydrate mineral   
1294 

Uwe Kolitsch and Gerald Giester
The crystal structure of namibite, Cu(BiO)2VO4(OH), and revision of its symmetry   
1298 

Anthony R. Kampf
The crystal structure of pararobertsite and its relationship to mitridatite   
1302 

Jo?l Brugger, Nicolas Meisser, Kurt Schenk, Peter Berlepsch, Michel Bonin, Thomas
Armbruster, Daniel Nyfeler, and Susanne Schmidt
Description and crystal structure of cabalzarite Ca(Mg,Al,Fe)2(AsO4)2 (H2O,OH)2, a new 
mineral of the tsumcorite group    
1307 

Dan Holtstam and Ann-Kristin Larsson
Tegengrenite, a new, rhombohedral spinel-related Sb mineral from the
Jakobsberg Fe-Mn deposit, V?rmland, Sweden    
1315 

 NEW MINERAL NAMES   
 1321 

 MEMORIAL

 Alexander R. McBirney and A. Dana Johnston
 Memorial of William T. Holser, 1920-999 
1327 

 ERRATUM    
1328