American Mineralogist
REGULAR ARTICLE
405 The alkali feldspars. III. An optical and x-ray study of high temperature feldspars
428 Physical properties of end-members of the garnet group
437 The absorption and refraction corrections and the lattice constant of chromium
449 An interpretation of the law of Donnay and Harker
460 On the composition of some Indian chromites
474 Occurrence and age of chevkinite from the Devil’s Slide fayalite-quartz syenite near Stark, New Hampshire
488 Jadeite-bearing metagraywackes in California
497 A regularly interstratified chlorite-vermiculite clay mineral
509 Optical anomalies in arfvedsonite from Greenland
512 Unit cell and space group of barylite
514 Contamination of the characteristic x-radiation of copper by Fe, Cr, and Ni radiation
516 A chart for measurement of optic axial angles
519 An easy method to obtain x-ray diffraction patterns of small amounts of material
521 A joint-free sample splitter
523 “Validity of “”Vegard’s Law”””
524 The curved-crystal x-ray spectrometer, a mineralogical tool
527 Incorporation of impurities in synthetic quartz crystals
NEW MINERAL NAMES and DISCREDITED MINERALS
536 New mineral names; New data; Discredited minerals
NOTES and NEWS
505 Notes and news: A note on some properties of synthetic montmorillonites
BOOK REVIEW
530 Book reviews
TABLE OF CONTENTS
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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.