siliceous brick

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• Brick — For other uses, see Brick (disambiguation). An old brick wall in English bond laid with alternating courses of headers and stretchers …   Wikipedia

• bath brick — noun Usage: usually capitalized 1st B Etymology: from Bath, England : an unfired brick of siliceous material used as a scourer and polisher of metals * * * Bath brick, a preparation of fine sand containing much silica, molded in the form of a… …   Useful english dictionary

• Bristol brick — Bristol Bris tol, n. A seaport city in the west of England. [1913 Webster] {Bristol board}, a kind of fine pasteboard, made with a smooth but usually unglazed surface. {Bristol brick}, a brick of siliceous matter used for polishing cultery;… …   The Collaborative International Dictionary of English

• Fire brick — Fire Fire (f[imac]r), n. [OE. fir, fyr, fur AS. f[=y]r; akin to D. vuur, OS. & OHG. fiur, G. feuer, Icel. f[=y]ri, f[=u]rr, Gr. py^r, and perh. to L. purus pure, E. pure Cf. {Empyrean}, {Pyre}.] 1. The evolution of light and heat in the… …   The Collaborative International Dictionary of English

• Flint brick — Flint Flint, n. [AS. flint, akin to Sw. flinta, Dan. flint; cf. OHG. flins flint, G. flinte gun (cf. E. flintlock), perh. akin to Gr. ? brick. Cf. {Plinth}.] 1. (Min.) A massive, somewhat impure variety of quartz, in color usually of a gray to… …   The Collaborative International Dictionary of English

• bath-brick — /bäthˈbrik/ noun A preparation of siliceous silt, manufactured at Bridgwater in the form of blocks and used in cleaning knives ORIGIN: Traditionally said to be named after the first maker, one Bath, or from its resemblance to Bath stone …   Useful english dictionary

• bath brick — /ˈbaθ brɪk/ (say bahth brik) noun a compacted mass of fine siliceous sand, used for scouring metal. {named after Bath, England} …  

• diatomaceous earth — a fine siliceous earth composed chiefly of the cell walls of diatoms: used in filtration, as an abrasive, etc. Also called diatomite /duy at euh muyt /, kieselguhr. [1880 85] * * * or kieselguhr Light coloured, porous, and friable sedimentary… …   Universalium

• Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …   Wikipedia

• Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …   Wikipedia

• firebrick — /fuyeur brik /, n. a brick made of fire clay. [1785 95; FIRE + BRICK] * * * ▪ building material also called  Refractory Brick,         refractory material consisting of nonmetallic minerals formed in a variety of shapes for use at high… …   Universalium