is a hard, heavy, durable earthenware with a white porcelain-like appearance. It's also called Masonware.
A kind of strong pottery perfected and patented in the early 19th century by Miles Mason.
Stoneware, patented 1813 by Charles James Mason, containing ground glassy slag, a by-product of iron smelting, for extra strength.
a much abused term that should be used only in reference to earthenware of good quality and better-than-average strength. True ironstone was originally developed in England. Originally it was a form of stoneware said to contain powdered iron slag. Ironstone has a slightly porous body.
The trade name for a high grade type of Earthenware. Ironstone is the name given to a higher-fired, durable formula for white-glazed earthenware that was developed in England. Sometimes the term "ironstone" is used indiscriminately to describe white-glazed earthenware of many qualities -- not always the high standard set by the original English ironstone.
a dense, durable, hard white pottery first produced in England during the 18th century. It contains a high percentage of clay and a low percentage of non-clay materials, and is fired at a high temperature.
A term applied to certain types of earthenware. Originally it was a form of stoneware said to contain powdered iron slag. Ironstone has a slightly porous body.