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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 ...
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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 ...
This is a list of mines in the Canadian province of Quebec and includes both ... Lac d'Amiante du Canada: Asbestos: Ophiolite: Estrie : 1958-2012 ... Mo, Bi: Abitibi ...
Silver, mining came to an end 1780; everything kept in its original state, without electric light 47°04′36″N 13°51′35″E / 47.0768°N 13.8596°E / 47.0768; 13.8596 ( Silverbergwerk Ramingstein
Highvale Mine Yes TransAlta and SunHills Mining Partnership Edmonton 12,600 [10] Obed Mountain Yes Westmoreland Coal Company Hinton [10] Paintearth Mine Yes Westmoreland Coal Company Hanna [10] Palisades No Altitudes Resources Hinton 4,648 [10] Ryley Yes Dodds Coal Edmonton [10] Sheerness Mine Yes Westmoreland Coal Company Hanna [10] Vista Yes ...
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]
View of mines, plant, rail yard in Cardin, Oklahoma (1922) An unusual cluster of galena crystals from the Tri-State district. The gold-colored mineral is chalcopyrite. Size: 3.9 x 3.4 x 2.5 cm. The Tri-State district was a historic lead-zinc mining district located in present-day southwest Missouri, southeast Kansas and northeast Oklahoma. The ...