enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Copper mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Copper_mining_in_the...

    The principal mines were the Iron Mountain Mine, Mammoth Mine, and the Balaklala Mine. Copper production began in 1894, and continued off-and-on until 1976. Total production was 320 thousand tonnes of copper , 93 million pounds of zinc , 36 million troy ounces of silver , and 520,000 ounces of gold .

  3. Azurite - Wikipedia

    en.wikipedia.org/wiki/Azurite

    Azurite or Azure spar [5]: 14 is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite , after the type locality at Chessy-les-Mines near Lyon , France . [ 3 ]

  4. How the once-booming mine town of Picher, Oklahoma ... - AOL

    www.aol.com/once-booming-mine-town-picher...

    Picher, Oklahoma was incorporated in 1918 after ore was discovered. All that remains in the ghost town are empty buildings and piles of toxic waste. Picher, Oklahoma was incorporated in 1918 after ...

  5. Azurmalachite - Wikipedia

    en.wikipedia.org/wiki/Azurmalachite

    It is alternatively called azuromalachite, azurite-malachite and malachite-azurite. [2] Azurmalachite has a distinctive mottled green and blue coloration. It is relatively rare but can sometimes be found above copper deposits. The main sources for mined azurmalachite are the United States, France, and Namibia. [3]

  6. Tri-State district - Wikipedia

    en.wikipedia.org/wiki/Tri-State_district

    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 ...

  7. Coal County, Oklahoma - Wikipedia

    en.wikipedia.org/wiki/Coal_County,_Oklahoma

    Coal County is in southeastern Oklahoma, in a 10-county area designated for tourism purposes by the Oklahoma Department of Tourism and Recreation as Choctaw Country. [5] According to the U.S. Census Bureau , the county has a total area of 521 square miles (1,350 km 2 ), of which 517 square miles (1,340 km 2 ) is land and 4.7 square miles (12 km ...

  8. Tar Creek Superfund site - Wikipedia

    en.wikipedia.org/wiki/Tar_Creek_Superfund_site

    Tar Creek is an area of 1,188 square miles located in Ottawa County, Oklahoma, within the Tri-State district of lead and zinc mining in Northeastern Oklahoma, Southwestern Missouri, and Southeastern Kansas. The first mining took place in Missouri around 1850. By 1908, sites had been started in Miami, Picher, and Commerce. The construction of ...

  9. Aurichalcite - Wikipedia

    en.wikipedia.org/wiki/Aurichalcite

    Associated minerals include: rosasite, smithsonite, hemimorphite, hydrozincite, malachite and azurite. [ 2 ] It was first described in 1839 by Bottger who named the mineral for its zinc and copper content after the Greek όρειχαλκος , for "mountain brass" or "mountain copper", the name of orichalcum , a fabulous metal, mentioned in the ...