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Grog, temper for clay. Grog, also known as firesand and chamotte, is a raw material usually made from crushed and ground potsherds, reintroduced into crude clay to temper it before making ceramic ware. It has a high percentage of silica and alumina. It is normally available as a powder or chippings, and is an important ingredient in Coade stone.
-- "The term pottery includes many varieties of ware from the crudest vessels of prehistoric times to the most beautiful decorated porcelains, stoneware and earthenware; it also includes many articles such as large grain-jars used in ancient times for storing corn and other dry materials, wine-jars and modern sanitaryware and the large tanks ...
Most Groggs are 9 inches tall or less and are made of a type of clay called grog. Groggs are usually made of popular Welsh rugby players, [1] Welsh celebrities [2] and the occasional non-Welsh celebrity. [3] [4] Whenever possible the person who is "grogged" is presented with the first Grogg produced. [5]
Ohr's pottery is notable for its thin walls, vibrant glazes, and twisted, pinched shapes made using a potter's wheel. Ohr dug much of his clay locally in southern Mississippi from the Tchoutacabouffa River. [7] Tchoutacabouffa is the Biloxi tribe's word for "broken pot." [14]
This pottery was long thought to have been imported from these other areas as trade items, and modern chemical analysis has shown that much of it is. The same analysis has also proved that some of the pottery was made locally in the Moundville polity. The polychrome pottery has representational motifs painted with red, white, and black pigments.
In pottery, a potter's wheel is a machine used in the shaping (known as throwing) of clay into round ceramic ware. The wheel may also be used during the process of trimming excess clay from leather-hard dried ware that is stiff but malleable, and for applying incised decoration or rings of colour.
In archaeology and art history, "terracotta" is often used to describe objects such as figurines and loom weights not made on a potter's wheel, with vessels and other objects made on a wheel from the same material referred to as earthenware; the choice of term depends on the type of object rather than the material or shaping technique. [8]
The Nantgarw China Works was a porcelain factory, later making other types of pottery, located in Nantgarw on the eastern bank of the Glamorganshire Canal, 8 miles (13 km) north of Cardiff in the River Taff valley, Glamorganshire, Wales. The factory made porcelain of very high quality, especially in the years from 1813–1814 and 1817–1820.
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