Center on Nantucket Island off the coast of Massachusetts, October 22-24, 1993. George Guthrie (Los Alamos...Granite workers (Vermont).375 Slateworkers (Vermont, North Wales, and Germany).377 Diatomaceous earth workers...Mineralogy, Crystal Chemistry and Health Effects. Oxford University Press, New York, 204 p. Definitions...compilation of such occurrences (his Fig. 4). In North America, serpentinites are most common in the Appalachians... as in the mineable deposits of Libby, Lincoln County, Montana. An Al-rich vermiculite from red soils |