Pottery, Earthenware Traits
These include all tiles, dishes, and other articles
made of baked clay which have been fired. There are
basically two types: 1. vitreous, which includes fine
porcelain, china, and stoneware, and 2. non-vitreous or
earthenware.
Pottery or earthenware conducts heat slowly and
evenly; retains heat well. Glaze is usually acid-
resistant, but is affected by sudden changes in
temperature. Pottery and earthenware should be protected
from harsh abrasives and heavy blows.