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brownstone |
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brownstone, red to brown variety of sandstone sandstone, sedimentary rock formed by the cementing together of grains of sand. The usual cementing material in sandstone is calcium carbonate, iron oxides, or silica, and the hardness of sandstone varies according to the character of the cementing material; quartz ..... Click the link for more information. . Its unusual color is caused in some instances by the presence of red iron oxide which acts as a cement, binding the sand grains together. Vast thicknesses (up to 20,000 ft/6,096 m) of brownstone were deposited in the present-day Connecticut River Valley of Massachusetts and Connecticut and in central New Jersey during the latter part of the Triassic period Triassic period (trīăs`ĭk) ..... Click the link for more information. . Quarries in these regions were the source for much of the building stone used in the late 19th and early 20th cent. in the construction of the many brownstone houses found from Baltimore to Boston; the stone, however, is not very durable, especially if poorly laid or maintained. Similar, but more brightly colored, sandstones also were deposited in the Rocky Mt. region during the Triassic period and Jurassic period Jurassic period (jərăs`ĭk) [from the Jura Mts. ..... Click the link for more information. . These deposits are called "redbeds" and make up the colorful landscapes of the Painted Desert of Arizona. brownstone [′brau̇n‚stōn] (petrology) Ferruginous sandstone with its grains coated with iron oxide. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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This celebrated team of architects has developed five-story luxury townhouses, single-level townhome suites in three-story buildings, four-story brownstones with three residential levels above ground-floor retail, conventional eight-story condominium buildings and loft rental buildings. I became very interested in the slated demolition of the other nearby buildings: the massive Dorset Hotel and two brownstones on Fifty-third Street. The architectural historian has transformed the space with antique mirrors, a Chinese carpet, artfully stacked books, a low-hanging chandelier, imported textiles, Bayard Rustin's walking sticks and stone fragments from other old brownstones in Harlem. |
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