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Azurite or Azure spar [5]: 14 is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite , after the type locality at Chessy-les-Mines near Lyon , France . [ 3 ]
Download as PDF; Printable version; ... Map all coordinates using ... Pages in category "Mining in Arkansas" The following 14 pages are in this category, out of 14 ...
Azurite has a dark, rich blue color - its formula, Cu3(CO3)2(OH)2, is very close to malachite. The blue color of azurite is from Cu+, while the green color of malachite is from Cu+2. Azurite & malachite almost invariably occur together, and are telling indicators of copper in the field, even in very small quantities.
The Rush Historic District is a zinc mining region of the Ozark Mountains in Arkansas. Now located within Buffalo National River , the district includes ruins dating from 1880 to 1940. The area was an important part of what became known as the North Arkansas Lead and Zinc District , and played a role in the development of railroads and modern ...
Smithsonite with calcite from the Monte Cristo mine, Rush Creek District, Marion County, Arkansas (size: 11.7 x 9.3 x 5.2 cm Ruins of the New White Eagle Mill, Rush Historic District, Buffalo National River, Arkansas. The best known and most prolific zinc mining region of north Arkansas for many years was the Rush Creek mining district of ...
In the city, the population was spread out, with 28.3% under the age of 18, 7.7% from 18 to 24, 28.9% from 25 to 44, 22.7% from 45 to 64, and 12.4% who were 65 years of age or older. The median age was 35 years.
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Zinc and lead mining began in the 1890s and peaked during World War I (1914–1918). A post office was established in Zinc in 1900 and the town was incorporated in 1904. [5] The town had a number of business establishments and a school in the 1920s, but a flood in 1927 caused damage to homes and businesses.