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  2. Azurite - Wikipedia

    en.wikipedia.org/wiki/Azurite

    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 ]

  3. Crater of Diamonds State Park - Wikipedia

    en.wikipedia.org/wiki/Crater_of_Diamonds_State_Park

    Crater of Diamonds State Park is a 911-acre (369 ha) Arkansas state park in Pike County, Arkansas, in the United States. The park features a 37.5-acre (15.2-hectare) plowed field, one of the few diamond -bearing sites accessible to the public.

  4. Rush Historic District - Wikipedia

    en.wikipedia.org/wiki/Rush_Historic_District

    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 ...

  5. Rush Creek mining district - Wikipedia

    en.wikipedia.org/wiki/Rush_Creek_mining_district

    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 ...

  6. Azure spar - Wikipedia

    en.wikipedia.org/wiki/Azure_spar

    Azure spar, sometimes azur-spar, is a trivial and commercial, partly obsolete name for several of the most famous bright blue or blue-colored minerals, which also have similar names, most notably for lazurite and azurite, [1]: 14 and also for the less commonly used lazulite. [2]: 248

  7. Geology of Arkansas - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Arkansas

    In Arkansas, the aluminum hydroxides in bauxite form small oolites and pea-sized pisolites and outcrop or are located very close to the surface under thin sediments. The resource was first mined in 1898, 11 years after the State Geologist, John Branner, identified it in a sample from Pulaski County, Arkansas.

  8. Uncle Sam (diamond) - Wikipedia

    en.wikipedia.org/wiki/Uncle_Sam_(diamond)

    It is displayed alongside the Canary Diamond, an uncut stone found at the Arkansas site in 1917. [ 7 ] The discovery of Uncle Sam arguably rescued the Arkansas Diamond Corporation, which had a debt over $276,470 (equivalent to $4.9 million in 2023) by that time and was going to be shut down in the winter of 1924.

  9. Zinc, Arkansas - Wikipedia

    en.wikipedia.org/wiki/Zinc,_Arkansas

    Zinc is located at (36.285384, −92.915419), approximately nine miles east in straight-line distance from the county seat of Harriso According to the United States Census Bureau, the town has a total area of 0.752 square miles (1.95 km 2), of which 0.751 square miles (1.95 km 2) is land and 0.001 square miles (0.0026 km 2) is water.