Covelline
Covellite, thin section micrograph
Chalcosite
Chalcopyrite and quartz crystals
Chalcopyrite mineral
Mining core sample, Kenya
Sulphur rocks
Cobaltite and chalcopyrite crystals
Bournonite
Bornite, close-up
Volcanic crater lake with sulphur deposits
Men carrying mined sulphur from volcanic crater
Sulphur deposits, Mount Iwo, Japan
Sphalerite & chalcopyrite
Sphalerite on strontianite
Open-cast copper mine, New Mexico, USA
Copper mine, Arizona, USA
Copper mine mill, Arizona, USA
Malachite, SEM
Galena & sphalerite on quartz substrate
Banded iron formation
Bismuthinite
Sphalerite and pyrite
Forms of copper ore
Tennantite
Tetrahedrite
Silver wire, mine specimen
Diamond processing, Siberia, Russia
Copper Ore
Cave of Crystals, Naica Mine, Mexico
Cave of Swords, Naica Mine, Mexico
Entrance to Naica Mine crystal caves
Zebraite
Covellite in clay groundmass, close-up
Fibrous antlerite
Microcrystalline antlerite
Zincblende
Tetrahedrite mineral specimen
Sulphur mine, artwork
Malachite in host rock
Azurite in host rock
Azurite
Malachite
Azurite and malachite
Chalcopyrite, SEM
Manganosite
Pollution in Trent and Mersey canal, Staffordshire, UK
Pyrite crystals in their host rock
Pyrite crystals
Cobaltine mineral, cobalt ore
Arsenopyrite
Antimonite
Realgar and orpiment
Stibnite
Sphalerite
Volcanic sulphur mining
Pyrite cubes in host rock
Taconite processing plant, USA
Bauxite
Copper reacting with sulphur
Peacock Ore
Chalcopyrite and Bornite, Peru
Barite and chalcopyrite crystals
Golden selenite
Slate with pyrite
Open cast copper mining in Arizona
Diamond mine slag heaps
Mineral exploration drilling, Kenya
Diamond drill bit
Mining core samples, Kenya
Venetia Diamond Mine, South Africa
Diamond miners with explosives
Diamond miners, South Africa
Malachite-based mineral deposit
Radial acicular crystals of antimonite
Cobalt and copper mine, Democratic Republic of Congo
Chalcopyrite
Nickeline
Phosphorite
Berzelianite
Chalcopyrite, an ore of Copper
Botryoidal hematite
Hemimorphite
Sulfur, Italy
Diamond mine, Siberia, Russia
IRON ORE MINING
Crystalline sulphur
Iron pyrite crystal, SEM
Iron pyrite
Iron pyrite crystals
Aragonite crystals with sulphur
Sulphur crystals
Sulphur crystal
Belt-hook carved in lapis lazuli
Hydrothermal quartz vein
Chalcocite crystals
Calcite on sphalerite
Arsenopyrite crystals, close-up
Pyrrhotite crystals, close-up
Pyrite interspersed with quartz
Greenockite on rock surface, close-up
Cinnabar on rock surface, close-up
Molybdenite in granite groundmass
Celestine crystals in sulphur groundmass
Realgar with grey quartz
Glaucodot crystals in groundmass
Cube-forming galena, close-up
Marcasite in chalk groundmass, close-up
Lump of yellow sulphur
Pentlandite, close-up
Bismuthinite crystals in rock groundmass
Siderite and calcite
Brochantite
Siderite, and iron ore