American Mineralogist
REGULAR ARTICLE
345 Mineralogical musing
354 Westerveldite, (Fe,Ni,Co)As, a new mineral from La Gallega, Spain
364 Elyite, basic lead-copper sulfate, a new mineral from Nevada
368 The crystal structure of talnakhite, Cu18Fe16S32
381 Gowerite, CaB5O8(OH)·B(OH)3·3H2O: Crystal structure and comparison with related borates
397 Octahedral tetramer in the crystal structure of leucophosphite, K2[Fe3+4(OH)2(H2O)2(PO4)4]·2H2O
411 Twin and pseudotwin intergrowths in kaolinite
426 “The disordered, “”zeolite like”” structure of connellite”
439 Direct observation of stacking faults in the zeolite erionite
463 Crystal chemistry of milarite-type minerals
473 Physical and chemical data for crandallite from Alachua County, Florida
485 Diffuse reflectance spectra of several clay minerals
494 The infrared spectra of valine adsorbed on Cu-montmorillonite
499 High temperature phases of zeolites of the natrolite group
511 Study of the stability of MnCO3 in inert atmospheres and in air
524 Gibbs free energy, enthalpy, and entropy of ten rock-forming minerals: Calculations, discrepancies, implications
554 Hydroxyl in the mantle
571 Paragenesis of the topaz-bearing portion of the Brown Derby No 1 pegmatite, Gunnison County, Colorado
584 Olivine content of chondrites measured by X-ray diffraction
593 Crystal chemistry of the basic manganese arsenates: V. Mixed manganese coordination in the atomic arrangement of arsenoclasite: Erratum
620 Acceptance of the Roebling Medal of the Mineralogical Society of America for 1971
627 Acceptance of the Mineralogical Society of America Award for 1971
683 Constitution and By-laws
AWARD
615 Presentation of the Roebling Medal of the Mineralogical Society of America for 1971 to J. D. H. Donnay
626 Presentation of the Mineralogical Society of America Award for 1971 to Robert A. Berner
NEW MINERAL NAMES
445 New observations on natural pyrrhotites: Part I: Mineragraphic techniques
594 New Mineral Names
MINERALOGICAL NOTES
592 MINERALOGICAL NOTES Orizite discredited (- epistilbite)
NOTES
611 Notices
BOOK REVIEW
599 Book Reviews
PROCEEDINGS
666 Proceedings of the Fifty-second Annual Meeting of the Mineralogical Society of America
668 Report of the Secretary for 1971
670 Report of the Treasurer for 1971
674 Report of Audit
674 Report of the Financial Advisory Committee for 1971
676 Report of the Editor for 1971
679 List of Former Officers and Meeting Places
687 List of Officers and Committees
MEMORIAL
631 Memorial of Dorothy Carroll
635 Memorial of Hans Carl Eisenreich Clausen
638 Memorial of Louis Caryl Graton
644 Memorial of Vladi Marmo
647 Memorial of Victor Ben Meen
652 Memorial of Chandrasekhara Venkata Raman.
657 Memorial of John Frank Schairer
TABLE OF CONTENTS
&
SPECIAL COLLECTIONS
Table of Contents
AmMin submission to acceptance/”first publication” is at a record average of about three to four months. Our acceptance to “final” publication is presently another 13 months on average.
Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.