Book Review: Geostatistics for Environmental Scientists. By Richard Webster and Margaret Oliver. John Wiley,Chichester, 2000, 271p, $110 (U.S.), ISBN 0-471-96553-7

Mathematical Geosciences -     

Blue John fluorspar

Of the many varieties of fluorspar found in the Peak District of Derbyshire, by far the best known is Blue John, long used for the manufacture of a variety of ornaments and jewellery.