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Excerpt from Clay in the Classroom: A Means to Creative Expression
Clay is found practically everywhere. Unless one lives on a beach or in a desert, clay in one's backyard, under the topsoil, is probable and its quality doubtlessly would be such that it could be used for pottery. Large, commercially valuable deposits of clay are found in Ohio, Tennessee, Florida, Illinois and California, among others. Many clays can be used singly, before or after washing, screening and stiffening, to make pottery. Others, which may not, individually, provide the particular qualities desired as to fired color, temperature and workability, can be combined with other clays and inorganic materials to form clay bodies. The clay from which porcelain dinnerware, for example, is made is not a single clay but a body compounded of a white clay, for color; a very plastic clay, for workability; a flux, for fired density; and silica, for fixed hardness and glaze fit.
The mineral, clay, is formed by the gradual erosion of rocks over periods of thousands of years. Water washes the disintegrated rock, altering both its chemical and physical properties and carries it over the surface of the earth. Clays are frequently found, therefore, along stream or river beds. Some clay deposits, how ever, are hundreds of feet underground, having been formed at a time when those areas were exposed.
Clay is composed of aluminum and silicon oxides, water and, often, impuri ties such as iron oxide. The physical properties of clays vary, determined in great part. By the extent of their individual travels over the earth's surface. The longer the trip, the finer the degree to which the particles are worn down, the greater the deterioration of organic matter mixed with the clay and the more plastic the clay.
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Clay in the Classroom: A Means to Creative Expression (Classic Reprint)
Print on DemandDa: Forgotten Books, London, Regno Unito
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Paperback. Condizione: New. Print on Demand. This book is a valuable resource for both new and experienced ceramicists who wish to harness the power of clay and transform it into visually stunning artwork. It begins with the basics of choosing and handling clay, before exploring a variety of construction techniques â" including pinching, coiling, slab building, draping, and pressing. No matter the technique used, each method emphasizes the unique qualities of clay and how to use it to make unique pieces. The author provides a brief history of clay and its place throughout history before discussing the tools and equipment artists need to work with clay and the different types of kilns used to fire clay. The different sections on materials, tools, and techniques can be read in any sequence to suit the reader's needs. The author encourages experimentation, and emphasizes the importance of feel throughout the process. This fascinating book is destined to become a go-to guide for anyone interested in unlocking the potential of this ancient material and producing their own beautiful and functional pieces of ceramic art. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9780282357290_0
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Clay in the Classroom: A Means to Creative Expression (Classic Reprint)
Da: PBShop.store US, Wood Dale, IL, U.S.A.
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PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9780282357290
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Clay in the Classroom: A Means to Creative Expression (Classic Reprint)
Da: PBShop.store UK, Fairford, GLOS, Regno Unito
Valutazione del venditore 5 su 5 stelle
PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LW-9780282357290
Quantità: 15 disponibili