American Mineralogist
REGULAR ARTICLE
137 An attempt to arrange silicates in the order of reaction energies at relatively low temperatures
149 A structural classification of fluoaluminates
166 The crystal chemistry of montmorillonite
173 Cordierite in pegmatite near Micanite, Colorado
185 Disorder in the mineral bornite, Cu5FeS4
193 Twinning in the diamond
207 Thermal analysis studies on carbonates; I. Aragonite and calcite
225 The effect of the interlayer cations on the expansion of the mica type of crystal lattice
239 Nomographs for triclinic cell computations
245 Studies of uranium minerals (I) : Parsonite and randite
251 Studies of uranium minerals (II): Liebigite and uranothallite
258 Acceptance of the Roebling Medal of the Mineralogical Society of America
295 Correspondents, fellows and members of the Mineralogical Society of America
324 Synthesis of uvarovite
333 Request for early abstracts for annual meeting of Mineralogical Society of America in Washington, D. C., November 16-18, 1950
AWARD
255 Presentation of the Roebling Medal of the Mineralogical Society of America to Herbert E. Merwin
NEW MINERAL NAMES and DISCREDITED MINERALS
333 New mineral names; Discredited minerals
NOTES and NEWS
323 Notes and news: Carnotite and radioactive shale in Missouri
BOOK REVIEW
328 Book reviews
PROCEEDINGS
268 List of former officers and meeting places
268 Proceedings of the thirtieth annual meeting of the Mineralogical Society of America at El Paso, Texas
320 Mineralogical Society (London)
MEMORIAL
259 Memorial of Frederick Noel Ashcroft
262 Memorial of Everend Lester Bruce
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.