American Mineralogist, 2000, V 85, N 1, January.

ARTICLES

Chin-Ho Tsai and Juhn G. Liou 
Eclogite-facies relics and inferred ultrahigh-pressure metamorphism in
the North Dabie Complex, central-eastern China    
1 

Edward D. Ghent and Terence M. Gordon 
Application of INVEQ to the geothermobarometry of metamorphic
rocks near a kyanite-sillimanite isograd, Mica Creek, British Columbia
9 

Scott D. Sitzman, Jillian F. Banfield, and John W. Valley 
Microstructural characterization of metamorphic magnetite crystals with
implications for oxygen isotope distribution
14 

Igor Broska, Igor Petrík, and C. Terry Williams 
Coexisting monazite and allanite in peraluminous granitoids of the Tribec
Mountains, Western Carpathians    
22 

Nikolai Bagdassarov, Alexander Dorfman, and Donald B. Dingwell 
Effect of alkalis, phosphorus, and water on the surface tension of
haplogranite melt    
33 

Liping Wang, Eric J. Essene, and Youxue Zhang 
Direct observation of immiscibility in pyrope- almandine-grossular 
garnet
41 

Dougal A. Jerram and Michael J. Cheadle 
On the cluster analysis of grains and crystals in rocks   
47 

Roland Stalder, Peter Ulmer, Alan B.Thompson, and Detlef Günther 
Experimental approach to constrain second critical end points in
fluid/silicate systems: Near-solidus fluids and melts in the system
albite-H2O    
68 

P. Garofalo, A. Audétat, D. Günther, C.A. Heinrich, and J. Ridley 
Estimation and testing of standard molar thermodynamic properties of
tourmaline end-members using data of natural samples    
78 

Luisa Ottolini, Fernando Cámara, and Simona Bigi 
An investigation of matrix effects in the analysis of fluorine in
humite-group minerals by EMPA, SIMS, and SREF    
89 

Fernando Cámara and Luisa Ottolini 
New data on the crystal-chemistry of fluoborite by means of SREF,
SIMS, and EMP analysis    
103 

Claudia Romano, Eleonora Paris, Brent T. Poe, Gabriele Giuli, Donald B.
Dingwell, and Annibale Mottana 
Effect of aluminum on Ti-coordination in silicate glasses: A XANES study
108 

Sing-Foong Cheah, Gordon E. Brown Jr., and George A. Parks 
XAFS study of Cu model compounds and Cu2+ sorption products on
amorphous SiO2, g-Al2O3, and anatase
118 

A. Manceau, B. Lanson, V.A. Drits,  D. Chateigner, W.P. Gates, J. Wu, 
D. Huo, and J. W. Stucki 
Oxidation-reduction mechanism of  iron in dioctahedral smectites: I.
Crystal chemistry of oxidized reference nontronites    
133 

A. Manceau, V.A. Drits, B. Lanson, D. Chateigner, J. Wu, D. Huo, W.P.
Gates, and J.W. Stucki
Oxidation-reduction mechanism of iron in dioctahedral smectites: II.
Crystal chemistry of reduced Garfield nontronite
153 

Xiaoqiang Hou, R. James Kirkpatrick, Ping Yu, Duane Moore, and
Yeongkyoo Kim 
15N NMR study of nitrate ion structure and dynamics in
hydrotalcite-like compounds
173 

Brian L. Phillips, Hongwu Xu, Peter J. Heaney, and Alexandra Navrotsky
29Si and 27Al MAS-NMR spectroscopy of b-eucryptite
(LiAlSiO4): The enthalpy of Si,Al ordering
181 

John B. Parise, William G. Marshall, Ronald I. Smith, H.D. Lutz, and
Hendrik Möller 
The nuclear and magnetic structure of "white rust" Fe(OH0.86D0.14)2    
189 

Richard J. Harrison, Simon A.T. Redfern, and Ron I. Smith
In-situ study of the R-3 to R-3c phase transition in the
ilmenite-hematite solid solution using time-of-flight neutron powder
diffraction    
194 

Klaus-D. Grevel, Elke Ursula Nowlan, Detlef W. Fasshauer, and
Michael Burchard
In situ X-ray diffraction investigation of lawsonite and zoisite
at high pressures and temperatures
206

Diana K. Fisler, Julian D. Gale, and Randall T. Cygan 
A shell model for the simulation of rhombohedral carbonate minerals
and their point defects   
 217 

Jennifer L. Palmer and Mickey E.Gunter 
Optical properties of natural and cation-exchanged heulandite group
zeolites
225 

Fabio Marchetti and Natale Perchiazzi 
The crystal structure of gearksutite, CaAlF4(OH)H2O    
231

Frank C. Hawthorne, Mark A. Cooper, Joel D. Grice, and Luisa Ottolini 
A new anhydrous amphibole from the Eifel region, Germany:
Description and crystal structure of obertiite, 
NaNa2(Mg3Fe3+Ti 4+)Si8O22O2    
236

Edwin Gnos and Thomas Armbruster
Kinoshitalite, Ba(Mg)3(Al2Si2)O 10(OH,F)2, a brittle mica from a
manganese deposit in Oman: Paragenesis and crystal chemistry
242 

Yunxiang Ni, Jeffrey E. Post, and John M. Hughes 
The crystal structure of parisite-(Ce), Ce2CaF2(CO3) 3   
251


LETTERS


Hexiong Yang and Jürgen Konzett 
High-pressure synthesis of  Na2Mg6Si6O 18(OH)2 - a new
hydrous silicate phase isostructural with aenigmatite
259 

NEW MINERAL NAMES
263 

BOOK REVIEW
267