A carbon containing clay used to produce Wedgwood pottery in Etruria, England. Etruria marl has a high iron content. It was also used for brick and tiles.
Sources Checked for Data in Record
- Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998