Ball clays are found in articles used daily by millions of people around the world - usually without them realising it! They are essential components of most types of pottery. They are easily mouldable and are white or near white when fired at a high temperature: ball clays are truly 'fine ceramic clays'.
Earthenware clays were some of the earliest clays used by potters, and it is the most common type of clay found. These clays are highly plastic (easily worked) and can be sticky. Earthenware clays contain iron and other mineral impurities which cause the clay to reach its optimum hardness at between 1745°F and 2012°F (950°C and 1100°C).
Fire clay is a range of refractory clays used in the manufacture of ceramics, especially fire brick. The United States Environmental Protection Agency defines fire clay very generally as a "mineral aggregate composed of hydrous silicates of aluminium (Al2O3·2SiO2·2H2O) with or without free silica.".
Slip may also be used for casting clay in plaster molds. Casting slip almost always has added ingredients to keep it in a uniformly consistent suspension until dried. Slip as Glue for Scoring and Slipping. Slip can be made from scraps from your clay body. Soak them in water until they have softened into a slurry and then stir and screen it through a mesh to remove any lumps. Apply it to scored surfaces you want to join together on your greenware. Sometimes this is called slip-slurry.
Southeast Asia, vast region of Asia situated east of the Indian subcontinent and south of China. It consists of two dissimilar portions: a continental projection (commonly called mainland Southeast Asia) and a string of archipelagoes to the south and east of the mainland (insular Southeast Asia).
Mediterranean Sea, with smaller areas in California, Chile, The Western Cape Province of South Africa, and West and South Australia (Figure 1). 2. Soil Forming Factors 2.1. Climate The main characteristic of the Mediterranean climate is the alternation of a moist cool winter and a hot dry summer exceeding generally 3 to 4 months.