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Kaolinite (/ ˈ k eɪ. ə l ə ˌ n aɪ t,-l ɪ-/ KAY-ə-lə-nyte, -lih-; also called kaolin) [5] [6] [7] is a clay mineral, with the chemical composition Al 2 Si 2 O 5 4.It is a layered silicate mineral, with one tetrahedral sheet of silica (SiO 4) linked through oxygen atoms to one octahedral sheet of alumina (AlO 6).
Clay is a type of fine-grained natural soil material containing clay minerals [1] (hydrous aluminium phyllosilicates, e.g. kaolinite, Al 2 Si 2 O 5 4). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. [2] [3]
Bousillage in south Louisiana is a mixture of clay earth and retted Spanish moss, but in the Upper Mississippi River Valley and Canada contains straw, grass or hair, [1] used to fill in the panels in poteaux-sur-sol, poteaux-en-terre, and half-timbered framing (called colombage in French). [2] This was a technique used in French Louisiana by ...
The first recorded use of medicinal clay is on Mesopotamian clay tablets around 2500 BC. Also, ancient Egyptians used clay. The Pharaohs’ physicians used the material as anti-inflammatory agents and antiseptics. It was used as a preservative for making mummies and is also reported that Cleopatra used clays to preserve her complexion. [1] [2]
A group of hydrous aluminium phyllosilicate minerals. Often also used to refer to the clay body, which sometimes may only contain small amounts of clay minerals. Clay body The material used to form an article of pottery. Thus a potter might prepare, or order from a supplier, such an amount of earthenware body, stoneware body or porcelain body ...
The name used by the Gros Ventre, ʔɔʔɔɔ̋ɔ́niinénnɔh means "White Clay People". [6] It has a variety of transliterations, including A'aninin, Aaniiih, Haaninin, [6] Aainen, Aa'ninena, and Aaninena. [4] The French used the term Gros Ventre, which was mistakenly interpreted from sign language. [6]
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The basic anatomy of a millstone. This is a runner stone; a bedstone would not have the "Spanish Cross" into which the supporting millrind fits.. Millstones or mill stones are stones used in gristmills, used for triturating, crushing or, more specifically, grinding wheat or other grains.