Fire clay is a specific kind of clay used in the manufacture of ceramics, especially fire brick. Clay is a naturally occurring material composed primarily of fine-grained Minerals which show plasticity through a variable range of Water content, and The word ceramic is derived from the Greek word κεραμικός ( keramikos) A fire brick, firebrick, or refractory brick is a block of refractory Ceramic material used in lining Furnaces Kilns The fire attribution is given for its refractory characteristics. A refractory is a material that retains its strength at high Temperatures ASTM C71 defines refractories as "non-metallic materials having those chemical and physical There are two types of fire clay: flint clay and plastic fire clay.

It is resistant to high temperatures, has a fusion point higher than 1,600°C, and therefore it is suitable for lining furnaces, as fire brick, and manufacture of utensils used in the metalworking industries, such as crucibles, saggars, retorts, and glassware. A furnace is a device used for Heating The name derives from Latin fornax, Oven. Metalworking is craft and practice of working with Metals to create individual parts assemblies or large scale structures A crucible is a cup-shaped piece of laboratory object Laboratory equipment used to contain Chemical compounds when heating them to very high Temperatures In a Chemistry laboratory a retort is a glassware device used for Distillation or Dry distillation of substances Glassware usually refers to Glass items used as Tableware, such as dishes cutlery flatware and Drinkware used to set a table for eating a meal Because of its stability during firing in the kiln, it can be used to make complex items of pottery such as pipes and sanitary ware. Kilns are thermally insulated chambers or Ovens in which controlled temperature regimes are produced Its chemical composition consists of a high percentage of silicon and aluminium oxides, and a low percentage of the oxides of sodium, potassium, and calcium. Silicon (ˈsɪlɪkən or /ˈsɪlɪkɒn/ silicium is the Chemical element that has the symbol Si and Atomic number 14 An oxide is a Chemical compound containing at least one Oxygen atom as well as at least one other element Sodium (ˈsoʊdiəm is an element which has the symbol Na( Latin natrium, from Arabic natrun) atomic number 11 atomic mass 22 Potassium (pəˈtæsiəm is a Chemical element. It has the symbol K (kalium from qalīy Atomic number 19 and Atomic mass 39 Calcium (ˈkælsiəm is the Chemical element with the symbol Ca and Atomic number 20 Unlike conventional brick-making clay, it is mined at depth, usually found as a seatearth associated with coal measures. A brick is a block of Ceramic material used in Masonry construction laid using mortar. Mining is the extraction of valuable Minerals or other geological materials from the earth usually (but not always from an Ore body Seatearth is a British coal mining term which is used in the geological literature

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