Some years ago I wrote a contribution for a volume on The Great Orme Mines- a Bronze Age mine in Wales-which will be published soon (I hope) in the meantime I have converted the text and table (in truth my wife has) into a web-readable form via my publications page at http://rosiehardman.com/rob htm- sorry no direct link yet. .I have tried to give a worked example of how ores and mineralised samples should be treated and assessed before spending large amounts of money on geochemical or stable isotrope on them. Rosie Hardman was/is my wife's stage name. R,a,Ixer ----------------------------------------------------- Dr R. A. Ixer School of Earth Sciences Email: [log in to unmask] University of Birmingham Tel: 0121 414 4179 Edgbaston Fax : 0121 414 3971 Birmingham B15 2TT ----------------------------------------------------- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%