There are variations in the primary minerals, auxiliary minerals, and carbonaceous components like lignite that make up different seams within the same deposit. Their attractiveness to potters is due to the fact that they are naturally fine-grained and flexible, and unlike most earthenware clays, they produce excellent-quality white ceramic bodies when burnt.
Ball clay deposits are extremely uncommon because of the complex of geological conditions needed for their formation and preservation. They hail from three locations in South West England's Devon and Dorset as well as other Eastern American states. Aside from being white, their main purpose in shaping operations is to either provide plasticity or aid in rheological stability. They are widely used in the construction of many different ceramic artefacts. Compositional differences are possible within a single deposit, especially within distinct seams. It's also conceivable for carbonaceous materials to vary. Clay is less plastic than kaolins. Nevertheless, it is still a crucial part of ceramic mixtures. An approach of mining that is used to extract clay is called surface working. The global Ball Clay Market was valued at US$ 375,031.81 Mn in 2021 and is forecast to reach a value of US$ 542,534.0 Mn by 2030 at a CAGR of 4.0% between 2022 and 2030. When mixed with kaolin, Imerys clays provide the cohesiveness and workability necessary for the creation of ceramic components such as sanitaryware. When mixed with kaolin, feldspar, and quartz, clay offers tableware a high level of elasticity and an attractive white-fired colour. In wall and floor tiles, ball clays are valued for their plasticity and bonding properties. They promise perfect glazing and engobe finishes. Electrical porcelain insulators use plastic clays as insulation against high voltage currents. High alumina Imerys clays and chamottes are used to other materials to increase plasticity while installing refractory or as binders for creating refractory bricks in refractory applications.
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