American Mineralogist
REGULAR ARTICLE
149 Some problems of chemical mineralogy
163 Crystal geometry of some alkali silicates
172 Observations on the distribution of trace elements in the perthite pegmatites of the Black Hills, South Dakota
191 Chinoite, a new mineral
197 Prehnitization of albitite
207 Crystal chemistry and differential thermal effects of dolomite
218 Fluid inclusions in beryl and quartz from pegmatites of the Middletown district, Connecticut
263 Faheyite, a new phosphate mineral from the Sapucaia pegmatite mine, Minas Gerais, Brazil
271 Quantitative analysis of endellite, halloysite and kaolinite by differential thermal analysis
279 A lath shaped non-expanded dioctahedral 2:1 clay mineral
292 Acceptance of the Roebling Medal of The Mineralogical Society of America
298 Acceptance of The Mineralogical Society of America Award
369 Correspondents, fellows and members of The Mineralogical Society of America
404 Two definitions of positive and negative extinction angles in the plagioclase feldspars: one leading to consistency and clarity, the other to inconsistency and confusion
411 Studies of borate minerals: I-X-ray crystallography of colemanite
AWARD
290 Presentation of the Roebling Medal to Frederick Eugene Wright
297 Presentation. of The Mineralogical Society of America Award to Frederick Henry Stewart
NEW MINERAL NAMES
426 New mineral names
NOTES and NEWS
399 Notes and news: Precession orientation photos
416 Notes and News
BOOK REVIEW
419 Book reviews
PROCEEDINGS
317 List of former officers and meeting places
317 Proceedings of the thirty-third annual meeting of The Mineralogical Society of America at Boston, Massachusetts
397 Mineralogical Society (London)
MEMORIAL
301 Memorial of Samuel George Gordon
309 Memorial of Maxwell Naylor Short
313 Memorial of Charles Robinson Toothaker
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.