PT - JOURNAL ARTICLE AU - Derby, Orville A. TI - Modes of occurrence of the diamond in Brazil AID - 10.2475/ajs.s3-24.139.34 DP - 1882 Jul 01 TA - American Journal of Science PG - 34--42 VI - s3-24 IP - 139 4099 - http://www.ajsonline.org/content/s3-24/139/34.short 4100 - http://www.ajsonline.org/content/s3-24/139/34.full SO - Am J Sci1882 Jul 01; s3-24