American Mineralogist
REGULAR ARTICLE
561 On rammelsbergite and parammelsbergite: Distinct forms of nickel diarsenide
578 Width of albite-twinning lamellae
587 Cristobalite in bentonite
591 An unusual occurrence of gypsum at Kalgoorlie, Western Australia
606 Crystallography of dolerophanite
611 Cuprobismutite – a mixture
614 Zoning in spherulites
619 Optical evidence of polysynthetic twinning in arsenopyrite
622 Conference on applied nuclear physics
624 Announcement of annual meeting
NEW MINERAL NAMES
626 New mineral names
BOOK REVIEW
625 Book review
PROCEEDINGS
624 Nominations for officers of the Mineralogical Society of America for 1941
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.