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  2. Bauxite - Wikipedia

    en.wikipedia.org/wiki/Bauxite

    Reddish-brown bauxite Bauxite with US penny for comparison QEMSCAN mineral maps of bauxite ore-forming pisoliths. Bauxite (/ ˈ b ɔː k s aɪ t /) is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium.

  3. Bauxite mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Bauxite_mining_in_the...

    Bauxite forms by the weathering of aluminum-rich and silica-poor rocks in hot, humid, climates, at places with good drainage. Under the proper conditions, weathering disintegrates the aluminium silicate minerals, and dissolves and removes the silica, creating bauxite. The mined US bauxite deposits have all been in the southeastern United States.

  4. craigslist - Wikipedia

    en.wikipedia.org/wiki/Craigslist

    Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...

  5. Aluminum industry in the United States - Wikipedia

    en.wikipedia.org/wiki/Aluminum_industry_in_the...

    The US imported nearly all the bauxite (the only commercial aluminum ore) used in producing primary aluminum. For years, the US has produced less than 1% of the bauxite used to make aluminum. The US also imported 33 percent of the aluminum that was used in 2014. Of the imported aluminum, 63% came from Canada. [1] [19]

  6. Aluminium smelting - Wikipedia

    en.wikipedia.org/wiki/Aluminium_smelting

    Alumina is extracted from the ore bauxite by means of the Bayer process at an alumina refinery. This is an electrolytic process, so an aluminium smelter uses huge amounts of electric power; smelters tend to be located close to large power stations, often hydro-electric ones, in order to hold down costs and reduce the overall carbon footprint ...

  7. Mountain Pass Rare Earth Mine - Wikipedia

    en.wikipedia.org/wiki/Mountain_Pass_rare_earth_mine

    At 1 July 2020, Proven and Probable Reserves, using a 3.83% total rare-earth oxide (REO) cutoff grade, were 18.9 million tonnes of ore containing 1.36 million tonnes of REO at an average grade of 7.06% REO. [8] The ore body is about 200 ft (61 m) thick and 2,300 ft (700 m) long. [3]

  8. Urban Ore - Wikipedia

    en.wikipedia.org/wiki/Urban_Ore

    Urban Ore is a salvage yard in Berkeley, California. Founded in 1980, it has two separate retail divisions, the General Store and Building Materials Exchange, which sell different types of items, which are dropped off daily by self-haulers.

  9. List of mines in California - Wikipedia

    en.wikipedia.org/wiki/List_of_mines_in_California

    registered as California Historical Landmark #786. Golden Fleece Tunnel: Westville: Golden Fleece Mining & Milling Co. Iron Mountain Mine: Redding: Kennedy Mine: Jackson: 1886–1942 South of Sutter Gold Mine Locarno Mine