The difference between clay and porcelain
Clay fired ware called pottery, porcelain clay porcelain ware is fired, this is the difference between the two.
The clay clay pottery material. The mineral composition is complex, mainly composed of kaolinite, water mica, montmorillonite, quartz and feldspar. Particle size is inconsistent, often with sand, silt and clay and so on. It has water absorption and absorbability, and has plasticity after adding water. The color is impure, often with yellow, gray and other colors, and therefore used only in pottery manufacture.
Porcelain clay, clay soil, Ge also powder, the more formal name is kaolin. Kaolin is a nonmetallic mineral, a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Named after kaolin village, Jingdezhen, Jiangxi province. The quality of pure kaolin is white, fine and soft, and it has good plasticity and fire resistance. The mineral composition is mainly composed of mineral kaolinite, halloysite, illite, illite, montmorillonite and quartz, feldspar etc.. Kaolin is widely used, mainly used for papermaking, ceramics and refractories, secondly used in coating, rubber filler, enamel glaze and white cement raw materials, a small amount of paint, paint, plastic, used for grinding wheel, pencil, soap, cosmetics, pesticide, medicine, textile, petroleum, chemical industry, building materials, defense and other industrial sectors.
