American Mineralogist
REGULAR ARTICLE
231 Confirmation of the empirical correlation of Al in hornblende with pressure of solidification of calc-alkaline plutons
240 Fibrolite in contact aureoles of Donegal, Ireland
255 Variations in Mg/(Mg + Fe), F, and (Fe,Mg)Si = 2Al in pelitic minerals in the Ballachulish thermal aureole, Scotland
273 Quartz: Heat capacities from 340 to 1000 K and revised values for the thermodynamic properties
280 Free energies of formation of NiO, CoO, Ni2SiO4, and Co2SiO4
292 Dehydration of a Ca- and a Mg-exchanged montmorillonite (SWy-1) at elevated pressures
299 Crystal-growth kinetics of plagioclase in igneous systems: One-atmosphere experiments and application of a simplified growth model
312 Solid-solution thermodynamics in CaCO3-MnCO3
319 Petrologic and crystal-chemical implications of cation order-disorder in kutnahorite [CaMn(CO3)2]
329 Theoretical analysis of cation ordering in binary rhombohedral carbonate systems
337 Order-disorder in omphacitic pyroxenes: A model for coupled substitution in the point approximation
345 Mineralogy of triple- and double-chain pyriboles from Orijärvi, southwest Finland
353 Kaolinitization of biotite: TEM data and implications for an alteration mechanism
357 Perovskite-type MgSiO3: Single-crystal X-ray diffraction study
361 Raman spectra of β-Mg2SiO4 (modified spinel) and γ-Mg2SiO4 (spinel)
365 Symmetry and crystal structure of monteregianite, Na4F2Y2Sil6O38·10H2O, a double-sheet silicate with zeolitic properties
375 Crystal structures of CaNiSi2O6 and CaCoSi2O6 and some crystal-chemical relations in C2/c clinopyroxenes
382 Electron-diffraction and electron-microscopy study of balangeroite and gageite: Crystal structures, polytypism, and fiber texture
392 Ion-microprobe analyses of Li and B in topaz from different environments
397 Blossite, α-Cu2+2V5+2O7, a new fumarolic sublimate from Izalco volcano, El Salvador
401 Danielsite: A new sulfide mineral from Western Australia
404 Hentschelite, CuFe2(PO4)2(OH)2, a new member of the lazulite group, and reichenbachite, Cu5(PO4)2(OH)4, a polymorph of pseudomalachite, two new copper phosphate minerals from Reichenbach, Germany
409 Ogdensburgite from Mapimi and new data for the species
413 “Compositional zoning in unusual Zn-rich chromite from the Sykesville district of Maryland and its bearing on the origin of “”ferritchromit”””
423 Glaucochroite (olivine, CaMnSiO4) from Franklin, New Jersey: Its composition, occurrence, and formation
429 Significance of a lithiophorite interface between cryptomelane and florencite
433 Modal analyses of granitoids by quantitative X-ray diffraction
438 Quantitative determination of mineral content of geological samples by X-ray diffraction: Discussion
441 Quantitative determination of mineral content of geological samples by X-ray diffraction: Reply
446 THERMO: A computer program for calculation of mixed-volatile equilibria
BOOK REVIEW and NOTICES
448 BOOK REVIEWS & NOTICES
MEMORIAL
444 Memorial of Horace R. Blank
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
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American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.