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Tuckahoe Marble is a high quality marble first discovered in 1822 in the town of Eastchester in Westchester County, New York. The marble is from the larger "Inwood Formation" or "deposit", which stretches in a northeasterly direction from mid-Manhattan through southern Westchester.〔(Tuckahoe Marble )〕 The marble is characterized scientifically as a dolomitic marble and varies in color from a light gray to light green, to a bluish white or brilliant white. A distinctive characteristic is the medium-to-coarse size of the calcite and dolomite particles that primarily compose the stone, which often contains minor amounts of hematite and pyrite. Oxidation of these iron-bearing minerals causes certain varieties of Westchester marble to turn orange-brown when the stone is exposed to weather.〔 http://www.nylandmarks.org/pdfs/CommonBond-22-2-Autumn2008.pdf〕 ==History== The vast majority of the early residential and commercial buildings in New York were constructed with wood while government and institutional buildings and mansions of the wealthy were often built of brick or stone. Locally quarried Manhattan schist and sandstone from the lower Hudson Valley were typically used before marble became more popular. By the late 18th century, marble was being produced by a number of quarries in northern Manhattan and along the Hudson River in Westchester. The most well-known quarry that supplied stone from the deposit was located in the area now known as Tuckahoe. This "Tuckahoe marble" was nearly pure white in color and considered by many to be of the highest grade. White Tuckahoe marble supplied the early United States with a building material suitable for the neoclassic architecture popular in America's early public buildings. Tuckahoe Marble was the single most important white marble deposit in the country until the latter part of the 1800s when the extensive, high quality marble deposits of southwestern Vermont became more available after the rise of the railroad. Quarrying of Tuckahoe Marble ceased in 1930. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tuckahoe Marble」の詳細全文を読む スポンサード リンク
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