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  2. Ore - Wikipedia

    en.wikipedia.org/wiki/Ore

    An ore deposit is an economically significant accumulation of minerals within a host rock. [9] This is distinct from a mineral resource in that it is a mineral deposit occurring in high enough concentration to be economically viable. [4] An ore deposit is one occurrence of a particular ore type. [10]

  3. List of copper ores - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_ores

    Following is a list of minerals that serve as copper ores in the copper mining process: [1] Image Name Formula % Copper when pure Chalcopyrite: CuFeS 2: 34.5 Chalcocite:

  4. Iron ore - Wikipedia

    en.wikipedia.org/wiki/Iron_ore

    Metallic iron is virtually unknown on the Earth's surface except as iron-nickel alloys from meteorites and very rare forms of deep mantle xenoliths.Although iron is the fourth-most abundant element in the Earth's crust, composing about 5%, the vast majority is bound in silicate or, more rarely, carbonate minerals, and smelting pure iron from these minerals would require a prohibitive amount of ...

  5. Smelting - Wikipedia

    en.wikipedia.org/wiki/Smelting

    Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal behind. The reducing agent is commonly a fossil-fuel source of carbon , such as carbon monoxide from incomplete combustion of coke —or, in earlier times, of charcoal . [ 1 ]

  6. Copper - Wikipedia

    en.wikipedia.org/wiki/Copper

    The great majority of copper ores are sulfides. Common ores are the sulfides chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). [40] These ores occur at the level of <1% Cu. Concentration of the ore is required, which begins with comminution followed by froth flotation.

  7. Galena - Wikipedia

    en.wikipedia.org/wiki/Galena

    Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. [5]Galena is one of the most abundant and widely distributed sulfide minerals.

  8. Iron oxide - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide

    An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. ... Almost all iron ores are oxides, so in that sense these ...

  9. Iron - Wikipedia

    en.wikipedia.org/wiki/Iron

    Iron is a chemical element; it has the symbol Fe (from Latin ferrum 'iron') and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's outer and inner core.