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Shell money is a medium of exchange similar to coin money and other forms of commodity money, and was once commonly used in many parts of the world. [1] Shell money usually consisted of whole or partial sea shells, often worked into beads or otherwise shaped.
In sixteenth-century continental North America, trade beads (sometimes called aggry and slave beads) were decorative glass beads used as a token money to exchange for goods, services and slaves (hence the name). The beads were integrated in Native American jewelry using various beadwork techniques.
Fire clay in a furnace. Fire clay is a range of refractory clays used in the manufacture of ceramics, especially fire brick. The United States Environmental Protection Agency defines fire clay very generally as a "mineral aggregate composed of hydrous silicates of aluminium (Al 2 O 3 ·2SiO 2 ·2H 2 O) with or without free silica." [1]
All fired ceramic wares or materials which, when shaped, contain a significant amount of clay. Exceptions are those used for technical, structural or refractory applications. Pottery is also: (1) the art and wares made by potters; (2) a ceramic material (3) a place where pottery wares are made; and (4) the business of the potter.
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The main features of cash and carry are summarized best by the following definitions: Cash and carry is a form of trade in which goods are sold from a wholesale warehouse operated either on a self-service basis or on the basis of samples (with the customer selecting from specimen articles using a manual or computerized ordering system but not serving themselves) or a combination of the two.
Kaolin, sometimes referred to as china clay, is a key ingredient in porcelain, which was first used in China around the 7th and 8th centuries. [17] Ball clay: An extremely plastic, fine grained sedimentary clay, which may contain some organic matter. Fire clay: A clay having a slightly lower percentage of fluxes than kaolin, but usually quite ...
When money is used to intermediate the exchange of goods and services, it is performing a function as a medium of exchange. It thereby avoids the inefficiencies of a barter system, such as the inability to permanently ensure "coincidence of wants". For example, between two parties in a barter system, one party may not have or make the item that ...