ball clay


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ball clay

[′bȯl ‚klā]
(materials)
A clay used in ceramics that is characterized by strong binding properties, a tendency to ball, and excellent plasticity.
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The term ceramics technically covers all works of clay whether fired or unfired; from the terracotta or red clay found in local lakes and rivers as sediment, or manufactured as conglomerates of related geological material like feldspar, quartz, ball clay, etc.
Rajasthan is a large producer of minerals such as lead, zinc, gypsum, soapstone, ball clay, calcite, rock phosphate, feldspar, kaolin, copper, jasper and silver, among others.
The main clay supply is the ball clay type, grey in colour and firing buff-white with red iron oxide stains.
In the early 1990s the American ceramic artist Bob Shay visited Denmark and delivered a workshop, organized by the Clay Today group, where he introduced his method of working with a mixture of ball clay and Perlite (an amorphous volcanic glass).
Responding to the needs of our customers, we have also become a major producer of feldspar, dolomite, southern bentonite, ball clay, kaolin, and blended mineral products.
There is a recipe for it in a book of 1789, and reads, "20 blue ball clay, 5 calcined carr, 1.
WRAP is also contributing around $541,000 to a new plant being built by WBB Minerals, which will process ball clay waste into fine aggregate.
I work with a low-fire clay body consisting of ball clay, talc and bentonite.
The transaction includes the ball clay, kaolin, and feldspar operations of Hecla, and was expected to be closed during the first week of April, subject to regulatory approval.
Ball clay, which is naturally contaminated by dioxins, had been used as a desiccant, or drying material, to enhance the soybean meal's flowability during processing.