Wilson, E.D., comp., 1940, Vermiculite: Arizona Bureau of Mines Circular no. 4, 3 p. Authors Wilson, E.D., comp. Publication Date 1940 Citation Arizona Bureau of Mines Circular no. 4, 3 p. State AZ Province BR County MO Placenames Hualapai Mts. Keywords Vermiculite More Keywords Vermiculite, AzGeoBib RefNum 11240