Slate mining
Slate roofing
Slate, Brattleboro, Vermont, USA
Welsh slate, close up
Opencast coal mine
A piece of natural slate
Mining core samples, Kenya
Oil Shale specimen
Fossil Cystoid
Manganosite
Elterwater slate quarry
Slate
Variety of Metamorphic Rocks
Sapphire mining, Madagascar
Mining core sample, Kenya
Malachite
Brochantite
Copper Ore
Siderite, and iron ore
Silver wire, mine specimen
Malachite in host rock
Azurite in host rock
Azurite
Azurite and malachite
Mineral exploration drilling, Kenya
Diamond drill bit
Diamond processing, Siberia, Russia
Slate outcrop, France
Andelusite crystals in slate
Tourmaline mica in slate
Slate with pyrite
Deformed quartz veins in slate
Slate showing stratum lines, full frame
Sulphur deposits, Mount Iwo, Japan
Chrysocolla
遺跡発掘調査
Tufa rock formation
Mineral mining, 16th Century artwork
Malachite, SEM
Banded iron formation
Venetia Diamond Mine, South Africa
Sulphur rocks
Quartz crystal cluster
Copper mine mill, Arizona, USA
Pile of coal lumps
Coal mine
Rock types
Cubic zirconia
Mountaintop removal coal mining
Sand and gravel mine, aerial photograph
Gypsum crystal group
Botryoidal hematite
Diamond miners, South Africa
Rock crushing plant, Shropshire, UK
19th-century diamond mining, Brazil
Concrete quarry, aerial photograph
Devonian slates
Storage of fossil specimens
Green marl
Open-cast copper mine, New Mexico, USA
Galenite cubes
Cave of Swords, Naica Mine, Mexico
Volcanic crater lake with sulphur deposits
Men carrying mined sulphur from volcanic crater
Zebraite
Taconite processing plant, USA
Gold mining in California, 19th century
Limestone mine, South Africa
Germany, North Rhine-Westphalia, Glesch, Brown coal surface mining
Open cast coal mine, aerial view
Concrete quarry and machinery next to quarry lake
Concrete quarry and machinery, aerial photograph
Open cast copper mining in Arizona
Germany, North Rhine-Westphalia, Grevenbroich, Garzweiler surface mine
Germany, North Rhine-Westphalia, Huckelhoven, Crescent moon shining over Zeche Sophia-Jacoba shaft tower at night
Spotted slate
Gold core sample
Gold in placer
Excavating volcanic Scoria rock
Volcanic cinder rock quarry
Open-cast coal mine, South Africa
Diamond mine slag heaps
Entrance to Naica Mine crystal caves
Copper mine, Arizona, USA
Bauxite
Coal sludge dam, West Virginia, USA
Illegal coal mining, China
Greywacke
Famous Mountain in Guangyuan and Autumn;China
Rock micro-folds
Quarry, aerial photograph
Gold stamp mill, USA, 1888
Peruvian iron mine, satellite image
Diamond mine
Open pit mine, Democratic Republic of Congo
Dry Rigg Quarry at Helwith Bridge
Diamond miners with explosives
Marble quarry
Sedimentary rock concretion
Cross-bedding in sandstone rock
Shale specimen
Limestone specimen
Arkose, a sedimentary rock
Yellow Sandstone
Sedimentary Rocks
Arkose, a sedimentary rock, Massachusetts
Septarian nodule
Folds of calcite in limestone rock
Pink orthoquartzite
Gypsum rock
Sandstone
Chert, a type of sedimentary rock
Limestone rock, close up
Shale, close-up
Banded flint
A piece of black shale, close-up