Brochantite
Malachite
Chrysocolla
Gold core sample
Copper Ore
Siderite, and iron ore
Botryoidal hematite
Copper mine mill, Arizona, USA
Bauxite
Silver wire, mine specimen
Diamond processing, Siberia, Russia
Cuprite crystals
Banded iron formation
Malachite in host rock
Azurite in host rock
Azurite
Azurite and malachite
Open-cast copper mine, New Mexico, USA
Pyrolusite and psilomelane manganese ores
Gold in placer
Malachite, SEM
Mining core sample, Kenya
Sulphur rocks
Copper (II) oxide
Oil Shale specimen
Fossil Cystoid
Slate mining
Mineral exploration drilling, Kenya
Diamond drill bit
Mining core samples, Kenya
Manganosite
Copper mine, Arizona, USA
Bubble flotation in silver extraction
Taconite processing plant, USA
Copper oxide crystals, SEM
Tufa rock formation
Sulphur deposits, Mount Iwo, Japan
Gold in Quartz
Opencast coal mine
Sapphire mining, Madagascar
Venetia Diamond Mine, South Africa
Quartz crystal cluster
Chromite and serpentine
Cave of Swords, Naica Mine, Mexico
Entrance to Naica Mine crystal caves
Sample of haematite
Pyrolusite in quartz
Cassiterite crystals in groundmass
Washing tin after extraction of ore. depicted in 'De Re Metallica'.
Roasting ore.
Polished limestone
Open pit mine, Democratic Republic of Congo
Gypsum crystal group
Pyrolusite
遺跡発掘調査
Diamond miners, South Africa
Pinto Valley Copper Mine, Arizona, USA, aerial photograph
Mineral mining, 16th Century artwork
Rock crushing plant, Shropshire, UK
Botryoidal chalcedony, close-up
Cave of Crystals, Naica Mine, Mexico
Smelting copper from copper oxide.
Volcanic crater lake with sulphur deposits
Men carrying mined sulphur from volcanic crater
Zebraite
Gold in quartz
Siderite and calcite
Dendritic pyrolusite
Rock micro-folds
Open cast copper mining in Arizona
Ilmenite in feldspar groundmass
Sand and gravel mine, aerial photograph
Calcium nuggets
Hoisting Ore & Lowering Miners, Lead Homestake Mine, South Dakota, USA, circa 1905
Washing for tin
Borax
19th-century diamond mining, Brazil
Banded iron formation (BIF)
Galena
Mercury gold panning extraction, 1940
Diamond-tipped drill, 19th century
Banded Ironstone Formation (BIF)
Hardrock periscope, Miner's Park, Utah, USA
Concrete quarry, aerial photograph
Covelline
Phosphorite
Gibbsite
Magnetite and calcite
Smithsonite encrustation
Cobalt and copper mine, Democratic Republic of Congo
Zincblende
Vanadinite crystals
Zinc mine, 19th century
Excavating volcanic Scoria rock
Diamond mine slag heaps
Mountain Pass rare earth mine
Galenite cubes
IRON ORE MINING
Diamond miners with explosives
Crystal of morganite
Aquamarine crystal
Goshenite crystal embedded in orthoclase
Australian ore mines, satellite image
19th-century Native American mine worker
Chromite
Braunite in barite