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The largest producing mines of Virgin Valley have been the famous Rainbow Ridge, [41] Royal Peacock, [42] Bonanza, [43] Opal Queen, [44] and WRT Stonetree/Black Beauty [45] mines. The largest unpolished black opal in the Smithsonian Institution, known as the "Roebling opal", [ 46 ] came out of the tunneled portion of the Rainbow Ridge Mine in ...
Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America.It is commonly unearthed by natural erosion or through the process of various mining practices, within the perimeter of an ancient sea bed called the Western Interior Seaway. [2]
Washington County Lead District - Furnace Creek: Caledonia: 3/10/2011: MON000705027: Washington County - Old Mines: Old Mines: Surface soil at 290 residential properties and 124 private drinking water wells are contaminated with lead. Occasional elevated levels of barite, arsenic, and cadmium have also been identified at the site. [52] 09/19 ...
Mine Commodities Ore deposit ... Lac d'Amiante du Canada: Asbestos: Ophiolite: Estrie : 1958-2012 Troïlus: ... Mo, Bi: Abitibi-Témiscamingue: 1962-1971
The potential for lead mining in Southeast Missouri was first discovered and documented in 1700 by Father James Gravier. [2] Philip Francois Renault of France led a large exploratory mission in 1719 and started mining operations in Old Mines and Mine La Motte in 1720, establishing the first lead mining subdistrict of Mine LaMotte-Fredericktown.
Buckles Mine: near Elliot Lake Rio Algom: 1957–1958 Can–Met Mine: near Elliot Lake Denison Mines: 1957–1960 Denison Mine: near Elliot Lake Denison Mines: 1957–1992 Lacnor Mine: near Elliot Lake Rio Algom: 1957–1960 Milliken Mine: near Elliot Lake Rio Algom: 1958–1964 Nordic Mine: near Elliot Lake Rio Algom: 1956–1990 Panel Mine ...
Missouri Mines State Historic Site occupies Federal Mill No. 3 in Park Hills, Missouri, United States, which processed the lead and zinc ore that was mined in the immediate area for many decades. The site's old power building features a geological and mining history museum and interpretive center focusing on the state's historic Old Lead Belt .
The company operated the Sherritt-Gordon Mine [6] from 1931 until 1951, [7] leaving behind 7.7 mega tons of tailings, [8] polluting Kississing Lake in what the Winnipeg Free Press described the pollution around the mine as "one of the worst cases of acidic mine drainage in the world". [9]