Enameled cast iron (like those from Le Creuset) or enameled terracotta are popular for their heat retention and aesthetic for serving.
A terrine refers both to a specific and the layered, loaf-shaped dish (typically made of coarsely chopped meat, seafood, or vegetables) that is cooked inside it. buy terrine
Standard terrines are rectangular with smooth sides and sloping corners to make unmolding easier. Enameled cast iron (like those from Le Creuset)
When purchasing a terrine mold, look for materials that provide even heat distribution and can withstand a [water bath (bain-marie)](0.5.16, 0.5.26). buy terrine