Search

Sort by:
Results 581 - 590 of 869 for Mining
  • Article - 28 Apr 2014
    Lignite may be described as a soft, low-rank, brownish-black coal. Lignite is referred to as brown coal. Lignite is a sedimentary rock that is formed from naturally compressed peat.
  • Article - 20 May 2014
    Chalcoalumite was named after the essential elements copper (Greek term ‘chalkos’) and aluminum sulfate (Latin term ‘alum’) in the composition.
  • Article - 13 May 2014
    Butlerite was named after Professor Gurdon Montague Butler (1881–1961), an American mining geologist associated with the University of Arizona, Tucson, Arizona, USA.
  • Article - 26 Sep 2013
    Boltwoodite was named after Bertram Borden Boltwood (1870-1927), radiochemist of Yale University, New Haven, Connecticut, USA, who devised the U-Pb method of measuring geologic time.
  • Article - 3 Sep 2013
    Benjaminite was first discovered in 1924 from the Outlaw Mine, 12 miles north of Manhattan, Nye Co. Nevada, USA. The mineral was named after Dr. Marcus Benjamin of the U.S. National Museum.
  • Article - 20 May 2014
    Arsenolite is an arsenic mineral that was first described in 1854 for an occurrence in the St. Andreasberg District, Harz Mountains, Lower Saxony, Germany. The mineral was named for the presence of...
  • Article - 13 Jun 2014
    Adamite was named after Gilbert-Joseph Adam, a French mineralogist, who provided the first specimens. It is a zinc arsenate hydroxide mineral.
  • Article - 4 Jun 2014
    Algodonite is a gray white metallic, copper arsenide mineral crystallizing in a hexogonal pattern. The mineral was first discovered from the Algodones silver mine in Coquimbo, Chile in 1857. It has a...
  • Article - 5 Oct 2012
    Ken Cunningham, CEO of Miranda Gold Corp talks to AZoMining about gold exploration opportunities in Nevada, Columbia and Alaska.
  • Article - 14 Sep 2012
    Throughout history, gold (Au) has been a very valuable metal because of its monetary worth and unique physical and chemical properties; it is chemically stable (does not oxidize, unlike other metals)...

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.