American Mineralogist
REGULAR ARTICLE
515 Pyroxenes of common mafic magmas. Part 1
536 Nepheline
541 The validity of paragonite as a mineral species
546 Chilean hexahedrites and the composition of all hexahedrites
551 Hydrothermal deposits in the Specimen Mountain volcanics, Rocky Mountain National Park, Colorado
562 The formation of jarosite on pyrite ornaments
565 Skeletonized apophyllite from Crestmore and Riverside, California
571 Announcement of annual meeting
NOTES
568 Notes on final grinding of petrographic thin sections
BOOK REVIEW
572 Book review
PROCEEDINGS
571 Nominations for officers of The Mineralogical Society of America for 1942
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.