brownstone


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brownstone,

red to brown variety of sandstonesandstone,
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 sandstones
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. 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 periodTriassic period
, first period of the Mesozoic era of geologic time (see Geologic Timescale, table) from 205 to 250 million years ago.

Throughout the Triassic, E North America, as a result of the mountain-building episode that formed the Appalachians in the late Paleozoic
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. 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 periodJurassic period
[from the Jura Mts.], second period of the Mesozoic era of geologic time, lasting from 213 to 144 million years ago. At the start of the Jurassic most of the continents were joined together until the Atlantic began to form and the Americas split off from Africa.
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. These deposits are called "redbeds" and make up the colorful landscapes of the Painted Desert of Arizona.

brownstone

A dark brown or reddish-brown sandstone, used extensively for building in the United States during the middle and late 19th century. See also: Stone

brownstone

[′brau̇n‚stōn]
(petrology)
Ferruginous sandstone with its grains coated with iron oxide.

brownstone

1. A dark brown or reddish brown arkosic sandstone, quarried and used extensively for building in the eastern US during the middle and late nineteenth cent.
2. A dwelling faced with brownstone, often a row house.
References in periodicals archive ?
The library, the 1850s Morgan family brownstone to the north, and the Classical-style annex that J.
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The site formerly known as Brownstone includes about 200 undeveloped acres and the 24-acre, 25-Lot Straube Business Park.
Eugene Simonoff & Associates of New York City represented Brownstone in the transaction, the terms of which were not disclosed.
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HFF) secured acquisition financing for The Brownstones at Englewood South, a 350-unit, Class A multi-housing community in Englewood, New Jersey.
The 319 Fourth Street project included the ground-up construction of a contextual modern brownstone on a narrow lot that had been vacant for over 50 years.
Brownstone said the letter supplies model lease language that protects readers' interests, ready-to-use letters to property owners and managers, and a range of "working tools" to help improve efficiency.
Designed for optimal natural lighting, the five residential and one mixed-use buildings feature a wide selection of customizable floor plans including multi-level Brownstones, Loft-style units, traditional single-level Village Homes, and dramatic Tower Suites with rooftop terraces and sweeping vistas.
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Rumor is they've started hanging out in posh New York brownstones and Malibu's mega-mansions and now they're moving mainstream.

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