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Clay pit

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A clay pit is a quarry or mine for the extraction of clay, which is generally used for manufacturing pottery, bricks or Portland cement. Quarries where clay is mined to make bricks are sometimes called brick pits. A brickyard or brickworks is often located alongside a clay pit to reduce the transport costs of the raw material. Today, pottery producers are often not sited near the source of their clay and usually do not own the clay deposits.

BrickworksBrickworksA brickworks, also known as a brick factory, is a factory for the manufacturing of bricks, from clay or shale. Usually a brickworks is located on a clay bedrock (the most common material from which bricks are made), often with a quarry for clay on site. In earlier times bricks were made at brickfields, which would be returned to agricultural use after the clay layer was exhausted.BrickyardBrickyardA brickyard or brickfield is a place or yard where bricks are made, fired, and stored, or sometimes sold or otherwise distributed from. Brick makers work in a brick yard. A brick yard may be constructed near natural sources of clay or on or near a construction site if necessity or design requires the bricks to be made locally. Brickfield and Brickfields became common place names for former brickfields in south east England.QuarryQuarryA quarry is a place where rock and earth materials – such as limestone, marble, granite, gravel, and sand – are excavated. The operation of quarries is regulated in some jurisdictions to manage their safety risks and reduce their environmental impact.PotteryPotteryPottery is the process and the products of forming vessels and other objects with clay and other raw materials, which are fired at high temperatures to give them a hard and durable form. The place where a potter makes such wares is also called a pottery (plural potteries). The definition of pottery, used by the ASTM International, is "all fired ceramic wares that contain clay when formed, except technical, structural, and refractory products".Portland cementPortland cementPortland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone.BrickBrickA brick is a type of building material used to build walls, pavements, and other elements in masonry construction. Properly, the term brick denotes a unit primarily composed of clay, but it is now also used informally to denote building units made of other materials or other chemically cured construction blocks. Bricks can be joined using mortar, adhesives or by interlocking.Raw materialRaw materialA raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials / intermediate goods that are feedstock for future finished products. As feedstock, the term connotes these materials are bottleneck assets and are required to produce other products.MiningMiningExtraction of valuable minerals or other geological materials from the EarthMining of sulfur from a deposit at the edge of Ijen's crater lake, IndonesiaMining is the extraction of geological materials and minerals from Earth's surface. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly made artificially in a laboratory or factory.Eden ProjectEden ProjectThe Eden Project (Cornish: Edenva) is a visitor attraction in Cornwall, England owned and operated by registered charity the Eden Trust. The project is located in a reclaimed china claypit. The complex is dominated by two huge enclosures consisting of adjoining domes that house thousands of plant species, and each enclosure emulates a natural biome.ClayClayClay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, Al2Si2O5(OH)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. Clays develop plasticity when wet but can be hardened through firing. Clay is the longest-known ceramic raw material.Scuba divingScuba divingSwimming underwater, breathing gas carried by the diverRecreational scuba diverThe undersea kelp forest of Anacapa Island off of the coast of Oxnard, CaliforniaDiver looking at a shipwreck in the Caribbean SeaScuba diving is an underwater diving mode where divers use breathing equipment completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance.SailingSailingPropulsion of a vehicle by wind powerSailing craft and their rigsSloops racing with fore-and-aft sailsThree-masted barque with square sailsSailing hydrofoilcatamaran with wingsailDN classice boatClass 3 competition land yachtSailing employs the wind—acting on sails, wing sails or kites—to propel a craft on the surface of the water (sailing ship, sailboat, raft, windsurfer, or kitesurfer), on ice (iceboat) or on land (land yacht) over a chosen course, which is often part of a larger plan of navigation.

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