American Mineralogist, 1999, V 84, N 11-12, November-December.

PRESIDENTIAL ADDRESS

E. Bruce Watson 
Lithologic partitioning of fluids and melts
1693


MINERAL TEXTURES
 
S.E. Johnson 
Porphyroblast microstructures: A review of current and 
future trends 
1711 

T.H. Bell and V.M. Mares 
Correlating deformation and metamorphism around orogenic arcs
1727 

David J. Prior, Alan P. Boyle, Frank Brenker, Michael C. Cheadle,
Austin Day, Gloria Lopez, Luca Peruzzo, Graham J.Potts, Steve Reddy,
Richard Spiess, Nick E. Timms, Pat Trimby, John Wheeler, and Lena Zetterstr?m 
The application of electron backscatter diffraction and
orientation contrast imaging in the SEM to textural problems in rocks
1741 

R.H. Vernon 
Flame perthite in metapelitic gneisses at Cooma, SE Australia
1760 

John C. Ayers, Calvin Miller, Betsy Gorisch, and John Milleman 
Textural development of monazite during high-grade metamorphism: 
Hydrothermal growth kinetics, with implications for U,Th-Pb
geochronology 
1766 

Steffen H. B?ttner 
The geometric evolution of structures in granite during
continous deformation from magmatic to solid-state conditions: 
An example from the central European Variscan Belt 
1781 

Mary Anne Brown, Michael Brown, William D. Carlson, and Cambria Denison 
Topology of syntectonic melt-flow networks in the deep crust: 
Inferences from three-dimensional images of leucosome geometry in
migmatites
1793

Anthony R. Philpotts, Caroline M. Brustman, Jianyang Shi, 
William D. Carlson, and Cambria Denison 
Plagioclase-chain networks in slowly cooled basaltic magma
1819


ARTICLES


Lawrence M. Anovitz and James G. Blencoe 
Dry melting of high albite
1830 

John R. Sowerby and Hans Keppler 
Water speciation in rhyolitic melt determined by in-situ
infrared spectroscopy
1843

Mona Sirbescu and David M. Jenkins 
Experiments on the stability of cancrinite in the system
Na2OCaOAl2O3SiO2CO2H2O
1850

K. Yanagisawa, J.C. Rendon-Angeles, N.Ishizawa, and S. Oishi 
Topotaxial replacement of chlorapatite by hydroxyapatite during
hydrothermal ion exchange
1861
 
Sang-Heon Shim, Alexandra Navrotsky, Thomas R. Gaffney, and
James E. MacDougall 
Chabazite: Energetics of hydration, enthalpy of formation, 
and effect of cations on stability
1870 

Frans J.M. Rietmeijer 
Metastable non-stoichiometric diopside and Mg-wollastonite: An
occurrence in an interplanetary dust particle 
1883 

Michele Zema, M. Chiara Domeneghetti, and Vittorio Tazzoli 
Order-disorder kinetics in orthopyroxene with exsolution 
products 
1895 

Hexiong Yang and Charles T. Prewitt 
Crystal structure and compressibility of a two-layer polytype of
pseudowollastonite
(CaSiO3)
1902 

G. Artioli, P. Fumagalli, and S. Poli 
The crystal structure of Mg8(Mg2Al 2)Al8Si12 (O,OH)56 pumpellyite 
and its relevance in ultramafic systems at high pressure
1906 

M.D. Ruiz Cruz, E. Puga,and J.M. Nieto 
Silicate and oxide exsolution in pseudo-spinifex olivine
from metaultramafic rocks of the Betic Ophiolitic Association: 
A TEM study
1915 

David Christopher Noe and David R. Veblen 
HRTEM analysis of dislocation cores and stacking faults in
naturally deformed biotite crystals
1925 

David Christopher Noe and David R. Veblen 
Mottled contrast in TEM images of mica crystals
1932 

Jeanne Paquette, Hojatollah Vali, and Eric Mountjoy 
Novel TEM approaches to imaging of microstructures
in carbonates: Clues to growth mechanisms in
calcite and dolomite
1939

Daniela Cellai, Thorsten M. Gesing, Bernd Wruck,
and Michael A. Carpenter
X-ray study of the trigonal? hexagonal phase
transition in metamorphic kalsilite 
1950 

Robert M. Hazen and Hexiong Yang 
Effects of cation substitution and order-disorder on
P-V-T equations of state of cubic spinels 
1956 

Wenhui Duan, Bijaya B.Karki, and Renata M. Wentzcovitch 
High-pressure elasticity of alumina studied by first
principles 
1961 

ERRATUM1966


LETTERS


Jung Ho Ahn, Moonsup Cho, and Peter R. Buseck
Interstratification of carbonaceous material
within illite 
1967 

Antonio Castro, Mohammed El-Biad, and Hassan El-Hmidi 
A new method for determining the fluid-absent solidus
temperature in piston-cylinder experiments
1971 

AUTHOR INDEX 1976 

SUBJECT INDEX 1985