American Mineralogist
REGULAR ARTICLE
125 Ptilolite from Utah
128 The mordenite-ptilolite group; clinoptilolite, a new species
135 Mix-crystals of Ca2SiO4 and Mn2SiO4
143 An X-ray study of psilomelane and wad
150 Authigenic tourmaline in the Oriskany sandstone
153 Detrital collophane
156 Galena replacing Pennsylvanian rootlet
157 Procedure for restandardizing Clerici’s solution
PROCEEDINGS
159 Proceedings of societies
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.