agyagfajták

Agyagfajták refers to different types of clay, distinguished by their mineral composition, particle size, and origin. These classifications are crucial for various applications, from pottery and construction to medicine and cosmetics.

Kaolin, also known as china clay, is a soft white clay primarily composed of the mineral kaolinite. It is characterized by its fine particle size and low plasticity, making it ideal for fine china, paper production, and pharmaceuticals.

Ball clay is a highly plastic, fine-grained clay that fires to a white or off-white color. Its plasticity makes it an excellent binder and it is commonly used in ceramic glazes and bodies.

Fireclay is a refractory clay that can withstand high temperatures. It is typically found in coal seams and is used in the production of firebricks, refractories, and some ceramic products.

Stoneware clay is a less refined clay than kaolin or ball clay, often containing impurities like iron oxides. It fires to a hard, durable, and often vitrified state, making it suitable for stoneware pottery and tiles.

Earthenware clay is a porous clay that fires at lower temperatures. It is common and easily workable, often used for terracotta and decorative pottery. It requires glazing to become waterproof.

Bentonite is a highly absorbent clay, primarily composed of montmorillonite. It swells significantly when wet and is used in drilling muds, foundry molds, and as a clarifying agent.

Each type of clay has unique properties that dictate its suitability for specific purposes. Understanding these differences is essential for selecting the correct clay for any given task.