RT Journal Article SR Electronic T1 A fibrous intergrowth of augite and plagioclase, resembling a reaction rim, in a Minnesota gabbro JF American Journal of Science JO Am J Sci FD American Journal of Science SP 515 OP 520 DO 10.2475/ajs.s3-43.258.515 VO s3-43 IS 258 A1 William Shirley Bayley YR 1892 UL http://www.ajsonline.org/content/s3-43/258/515.abstract AB