John Cancalosi / Quartz (SiO2, silicon dioxide), the most common mineral on earth, used in making glass and other industrial uses.

Terry Whittaker / 2020VISION / Heavy earth excavator removes clay for future replacement with topsoil. Wetland habitat ecosytem creation for the RSPB by Breheny Civil Engineers at Bowers Marsh RSPB Reserve, Thames Estuary, Essex, U...

Mark Hamblin / 2020VISION / Rowan tree silhouetted above Loch Lurgainn with Cul Mor (left) and Ben More Coigach beyond, Coigach, Highland, Scotland, UK, November. Photographer quote: "Let's face it walking uphill is a drag – I g...

John MacPherson / 2020VISION / Two Bottlenose dolphins (Tursiops truncatus) breaching, Moray Firth, Inverness-shire, Scotland, UK, August. Did you know? Scotland is home to the most northerly population of bottlenose dolphins on ea...

Jack Dykinga / Valle de la Luna, The Codillera de Sal, formed by layer upon layer of salt, sand and clay, creating strata that buckled with earth's crust and lined with sand dunes. Atacama Desert, Chile. April 2009

Philippe Clement / Lightning during thunderstorm above petrochemical industry seen through magnifying glass held against illuminated globe of the earth Digital composite

Jeff Wilson / Film crew walking out of mountains down into Chitral valley after filming Snow leopard (Panthera uncia) Hindu Kush, Pakistan. For BBC Planet Earth series, Mountains episode, 2005

Jeff Wilson / Two Markhor (Capra falconeri) males fighting during the rut, Hindu Kush mountains, North West frontier, Pakistan, photographed whilst on location filming for BBC Planet Earth series, 2005

Jeff Wilson / Two Markhor (Capra falconeri) males fighting during the rut, Hindu Kush mountains, North West frontier, Pakistan, photographed whilst on location filming for BBC Planet Earth series, 2005

Jeff Wilson / Markhor (Capra falconeri) male silhouetted in the Hindu Kush mountains, North West frontier, Pakistan, photographed whilst on location filming for BBC Planet Earth series, 2005

Jeff Wilson / Markhor (Capra falconeri) male on mountain side in the Hindu Kush mountains, North West frontier, Pakistan, photographed whilst on location filming for BBC Planet Earth series, 2005

Jeff Wilson / Head portrait of Markhor (Capra falconeri) young male browsing on foliage, in the Hindu Kush mountains, North West frontier, Pakistan, photographed whilst on location filming for BBC Planet Earth seri...