David Fleetham / Mountains of salt at the salt flats of Pekelmeer, Bonaire Island, Caribbean. June 2008.
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TJ Rich / Miners sorting gravel while panning for gemstones, Ratnapura, Sri Lanka, December 2012.
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Pete Oxford / 0.5 grams of gold panned in Andrano-Tsimaty village, Northern Madagascar
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Luiz Claudio Marigo / Potassium chloride mined, used as soil fertiliser.. Sergipe, NE Brazil
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Roland Seitre / Industrial truck at the Poro mines, Houailou, North Province, New Caledonia, August 2012.
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Loic Poidevin / Man working in salt extraction from Karoum salt lake, Danakil depression, northern Ethiopia, February 2009
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Dan Burton / Aerial view of China Clay pits in Cornwall. UK England April 2010
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John Cancalosi / Cross section of Rhodochrosite, Capillitas Mine, Catamarca, Argentina
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TJ Rich / Drainage system for gemstone mine shafts under paddy fields, Ratnapura, Sri Lanka, December 2012.
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Alex Hyde / Disused iron wellhead, lift mechanism and mine works. Magpie Mine, a disused lead mine, Peak District National Park, UK, March 2008.
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John Cancalosi / Amazonite, a variety of microcline feldspar (potassium aluminium silicate). Feldspars are the principal constituents of igneous and plutonic rocks, among the most common minerals on Earth. Teller Coun...
