Nearest coal mines are around Lithgow, Bob - an hour or so from here. > How far are you from a coal mine? the overburden above the coal seam, is > usually a good fire clay. > > Bob L. > > > > > No Al, not much clay around here at all. Limestone, talc, ironstone, but > no > > clay. > > MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.