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Mining for pyrite at Litlabø had first been established in 1865. Stordø Kisgruber A/S was established in 1907 and maintained mining operations which ended in 1968. A total of about eight million tons of ore was won during the operation of the mine. Under the elevator tower is the main mine shaft which went straight down about 750 meters deep.
Pyrite cubic crystals on marl from Navajún, La Rioja, Spain (size: 95 by 78 millimetres [3.7 by 3.1 in], 512 grams [18.1 oz]; main crystal: 31 millimetres [1.2 in] on edge) Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold.
Mundic once [2] referred to pyrite, [3] but has now adopted the wider meaning of concrete deterioration caused by oxidisation of pyrites within the aggregate (usually originating from mine waste). The action of water and oxygen on pyrite forms sulphate (a salt of sulphuric acid ), thereby depleting the pyrite, causing loss of adhesion and ...
Between 1955 and 31 May 1972, iron sulphides (mainly as pyrite) was mined at the Nairne Pyrite Mine—later renamed as the Brukunga Mine—immediately west of the town, and transported to Port Adelaide for the production of sulphuric acid, used for manufacturing superphosphate fertiliser. [7]
Acid mine drainage at the Davis Mine. Davis, Massachusetts, is the abandoned location of the Davis Pyrite Mine, located in the town of Rowe, Massachusetts.Once the largest iron pyrite mine in Massachusetts, Davis grew to be a decent sized mining village at the beginnings of the Second Industrial Revolution (1870–1915).
Sulitjelma Mines (Norwegian: Sulitjelma gruber) was a Norwegian mining company that extracted copper, pyrite, and zinc at Sulitjelma in Fauske Municipality in Nordland county, Norway. Operations started with a test mine in 1887. From 1891 to 1933, the business was registered as a Swedish company called Sulitelma Aktiebolags Gruber.
The Løkken Mine is an underground pyrite mine located in the municipality of Orkland in Trøndelag, Norway. The mine was operative from 1654 to 1987, from the mining community Løkken Verk. It contained the largest deposits of its kind in Norway. Between 1654 and 1845, a total of 11,300 tons of copper was produced from the mine.
An example of a mine utilizing this technology is the Pueblo Viejo mine in the Dominican Republic. At Pueblo Viejo, the process is performed by injecting high-purity oxygen into autoclaves operating at 230 degrees C and 40 bar of pressure. The resulting chemical reactions oxides the sulfide minerals the gold is trapped within. [3]