Limestone pavement, New Zealand
Southern Alps, New Zealand
Ice avalanche
Franz Joseph glacier, New Zealand
Ibex by a glacier
Tsingy de Bemaraha, Madagascar
Limestone pavement
Ochre cliffs, France
Turquoise mineral
Carboniferous limestone pavement, Malham Cove
Schreckhorn mountain, Switzerland
Mount Taranaki, New Zealand
Duden Waterfalls, Turkey
Clay, SEM
Calcium aluminate crystals, SEM
Magnesium hydroxide in concrete, SEM
Fly ash in concrete, SEM
Damaged concrete, SEM
Grenz glacier, Switzerland
Climate dice, conceptual image
Surf
Eroded limestone pinnacles
Carlsbad Caverns, New Mexico, USA
Chamarel coloured earths, Mauritius
Araganite crystals in limestone cave
Limestone cave
Former limestone cave now exposed to sea
Lower Antelope Slot Canyon, Arizona
Agglestone Rock, UK
Brandwag buttress, South Africa
Rock formations, Karnataka, India
Flute marks on mudstone
Shelly limestone, polarised LM
Nummulitic limestone, LM
Nummulitic Limestone, LM
Glacial pothole
Sunrise over droogs, India
Fjallaback Nature Reserve, Iceland
Aa lava, Pacaya, Guatemala
Horschbach Waterfall, Germany
Colorado National Monument, USA
39 Steps Waterfall, South Africa
Thomson's Falls, Kenya
Limestone karst remnant
The Palisade, Colorado, USA
Vikos Gorge, Greece
Sand and gravel mine, aerial photograph
Nummulitic limestone rough with fossils
Marum volcano, Vanuatu
Limestone specimen
Limestone rock, close up
White Pockets rock formation, USA
Whites sandstone buttes, Arizona, USA
Rock arch, Joshua Tree National Park, USA
Venetikos River, Greece
Imbak Falls, Borneo
Conical hill
Moss-covered rocks
Avakas Gorge, Cyprus
Sandstone cliffs, Corfu, Greece
Amphibolite metamorphic rock
Mountains, Turkey
Australasia and south-eastern Asia
Delicate araganite structures in cave
Wind River Basin, Wyoming, USA
Boca Waterfall, Slovenia
Folds of calcite in limestone rock
North America, 3D artwork
Europe, 3D artwork
Asia, 3D artwork
Limestone
Dolores River valley, Colorado, USA
Copper salts on a rock
Conichalcite and adamite
Marble pebbles
Green marl
Ronda, Spain
Monthly global precipitation, May
Opencast coal mine
Mount Ruapehu at sunset, New Zealand
Glacier protection
Petrified forest, New Zealand
Aquatic dead zones, satellite map
Limestone formations in Carlsbad Caverns
Map of the World, 1848
Rock concretions
Sedimentary rock outcrop
Basalt outcrop
Eroded sandstone
Beinn Alligin, Scotland
Sample of granite
Sea stack, Wales
Banding patterns
Granite rock arch in mountains in Namibia
Polarised LM of thin section of greywacke
Ute Mountain Reservation, USA
Red sandstone cliffs, Wales, UK
Salt desert patterns in Iran, satellite image
Orange lichen on glacier polished rock
Igneous rocks near Arbatax, Sardinia, Italy
Layered flysch sediments
Titanium deposits on a beach
Krizna Jama Cave, Loz Valley, Slovenia
Black Dolerite boulders in the northern cape
Tephra surface of Hunga Tonga窶滴unga Ha'apai island
Folded schists
Bouma sequence in flysch
Colourful rock strata, UK
Amber
Glacial cave, Switzerland
Limestone cliffs, Warrnambool, Victoria
Crinoidal limestone, light micrograph
Sedimentary rock
Volcanic pseudocraters, Iceland
Glacier Noir, French Alps
Gorner glacier, Switzerland
Petrified Wood, New Mexico
Antigorite, Thurman, New York, USA
Marly limestone in Albian blue marls of Sisteron, France
Africa and Europe
Outback quarry, Australia
Crushed diamond, SEM
Coloured sandstone, Nevada, USA
Red Rock Canyon, Nevada, USA
Dolores River, Colorado, USA
Ein Avdat National Park, Israel
Desert koppie, South Africa
Sedimentary rock concretion
Cross-bedding in sandstone rock
Mineral deposition
Scapolite
Dolomite
Ankerite with calcite
Rose apatite, dolomite & pyrrhotite crystals
Trapezohedral leucite crystal
Flos ferri aragonite in rock groundmass
Greywacke
Two nephrite gems cut as droplets
Spherical concretions of radiating azurite crystals
Gypsum satin spar
Gypsum rock
Fayalite
Fossil algae
Aggregate of muscovite crystals
Willemite crystal
Welsh slate, close up
Banded flint
Two short prismatic augite crystals
Pyrite Nodule
Thin crust of calomel crystals
Sandstone rock formation, South Africa
Concretion of sand and iron on Dinosaur Ridge, Colorado, USA
Cliffs at Handa Island, Scotland, UK
Anticlinal folded rock strata
Giant's Causeway
Slot canyon
Eroded and pitted rock
Gilfenklamm gorge, Italy
Natural oil seep, Ecuador
Akhurian River
Argyre impact basin, Mars, Viking 1 image
Coastal cliffs, Wales
Wave-cut platform, Portencross, Scotland
Folded gneiss and old bridge
Rock formation resembling a face
Water-filled crevice near Thingvellir, Iceland