American Mineralogist
REGULAR ARTICLE
0 Part 2, Nineteenth Annual Meeting, Mineralogical Society of America, Waldorf-Astoria Hotel, New York City, December 28-30, 1938, Program, abstracts, and time schedule for presentation of papers
851 Crystal structure of vermiculites and mixed vermiculite-chlorites
863 Structures of kaolin and talc-pyrophyllite hydrates and their bearing on water sorption of the clays
876 An unusual form of thaumasite from the Ducktown district, Tennessee
881 Tarbuttite
894 Cadmium in smithsonite from New Mexico
903 Mississippi minerals survey discloses hidden wealth
NOTES
898 Notes on minerals associated with hilgardite
BOOK REVIEW
905 Book review
PROCEEDINGS
905 Proceedings of societies
INDEX
907 Index to volume 23
TABLE OF CONTENTS
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SPECIAL COLLECTIONS
Table of Contents
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Special Collections
American Mineralogist is an international journal that publishes mineralogical papers of broad interest to the geoscience and materials science community.