Discusses the production of ornamental and building stone in belgium. Includes a history of the Belgian marble industry from roman times to the present day; comments on the decline of the industry with the creation of the common market. Describes major Belgian stones: petit granit or blue stone; calcaire de meuse; Belgian black marbles such as marbre noir de golzinne, noir de denne, noir de tournai; red marbles such as griotte, royal red, byzantin, royal byzantin, gris des ardennes. Mentions that other famous Belgian marbles are not exploited. Photographs, map, references.