RT Journal Article SR Electronic T1 On the occurrence of grabamite in the Huasteca, Mex., and notice of the geology of that region JF American Journal of Science JO Am J Sci FD American Journal of Science SP 277 OP 286 DO 10.2475/ajs.s3-12.70.277 VO s3-12 IS 70 A1 Kimball, James Putnam YR 1876 UL http://www.ajsonline.org/content/s3-12/70/277.abstract AB