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  2. Rio Tinto Borax Mine - Wikipedia

    en.wikipedia.org/wiki/Rio_Tinto_Borax_Mine

    The borax deposit here was discovered in 1913, by John K. Suckow, [4] who when drilling for water found a deposit of what he believed to be gypsum. Further testing revealed it was the colemanite form of borax. Francis Marion "Borax" Smith bought the claim for his Pacific Coast Borax Company. [5] [6] Mining at the site by shafts began in the 1920s.

  3. Francis Marion Smith - Wikipedia

    en.wikipedia.org/wiki/Francis_Marion_Smith

    At the age of 21, he left Wisconsin to prospect for mineral wealth in the American West, starting in Nevada. [4]In 1872, while contracting to provide firewood to a small borax operation at nearby Columbus Marsh, Smith discovered a rich supply of ulexite at Teels Marsh in Mineral County, Nevada, east of Mono Lake, near the town he would found ten years later, Marietta, Nevada, while looking ...

  4. Metallurgy in pre-Columbian America - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    The Aztecs did not initially adopt metal working, even though they had acquired metal objects from other peoples. However, as conquest gained them metal working regions, the technology started to spread. By the time of the Spanish conquest, a bronze-smelting technology had already been developed.

  5. Harmony Borax Works - Wikipedia

    en.wikipedia.org/wiki/Harmony_Borax_Works

    While these methods were in use only for a short period of time, from 1883 to 1889, they gained great notoriety and became famous after the fact thanks to the advertising efforts of Stephen T. Mather, who later became the National Park Service's first director. [4] 20 Mule Team Terminus: Sign in Mojave, CA

  6. Borax - Wikipedia

    en.wikipedia.org/wiki/Borax

    In this structure, there are two four-coordinate boron centers and two three-coordinate boron centers. It is a proton conductor at temperatures above 21 °C. Conductivity is maximum along the b-axis. [16] Borax is also easily converted to boric acid and other borates, which have many applications. Its reaction with hydrochloric acid to form ...

  7. History of the iron and steel industry in the United States

    en.wikipedia.org/wiki/History_of_the_iron_and...

    From a combined iron and steel production of 203 million tons in 1979, US output fell almost in half, to 107 million tons in 1982. Some steel companies declared bankruptcy, and many permanently closed steelmaking plants. By 1989, US combined iron and steel production recovered to 142 million tons, a much lower level than in the 1960s and 1970s.

  8. Iron mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Iron_mining_in_the_United...

    Although in 2014, the US mined only 1.8 percent of all iron ore mined worldwide, the US was previously a much larger factor in the world iron ore market. From 1937 through 1953, US iron ore made up more than a third of the world's iron ore production; the proportion of world iron ore mined in the US peaked in 1945 at 56 percent.

  9. Boron, California - Wikipedia

    en.wikipedia.org/wiki/Boron,_California

    Boron (formerly Amargo, Baker, Borate, and Kern) [4] is a unincorporated place in Kern County, California, United States. Boron is 15 miles (24 km) southwest of Red Rock Mountain at an elevation of 2,467 feet (752 m). [4] For statistical purposes, the United States Census Bureau has defined Boron as a census-designated place (CDP). The ...