Rock formations, Karnataka, India
Agglestone Rock, UK
Brandwag buttress, South Africa
Flute marks on mudstone
Rock concretions
Colourful rock strata, UK
Sedimentary rock outcrop
Orange lichen on glacier polished rock
Salt desert patterns in Iran, satellite image
Rock formations, Valle de la Luna, San Pedro de Atacama, El Loa Province, Antofagasta Region, Chile
Ute Mountain Reservation, USA
Black Dolerite boulders in the northern cape
Sunrise over droogs, India
Karst rock formation, Switzerland
Folded rock strata, Patagonia
Araganite crystals in limestone cave
Delicate araganite structures in cave
Former limestone cave now exposed to sea
Limestone pavement, New Zealand
Mountain, illustration
Granite rock arch in mountains in Namibia
Glacial pothole
Folded schists
Sea stack, Wales
Eroded sandstone
Carboniferous limestone pavement, Malham Cove
Red sandstone cliffs, Wales, UK
Krizna Jama Cave, Loz Valley, Slovenia
Limestone pavement
Basalt outcrop
Beinn Alligin, Scotland
Limestone cave
Sandstone cliffs, Corfu, Greece
Volcanic rock cavities
Copper salts on a rock
Giant's Causeway
Akhurian River
Appenzell Alps, Switzerland
Amphibolite metamorphic rock
Limestone rock, close up
Sedimentary rock
Banding patterns
Avakas Gorge, Cyprus
Moss-covered rocks
Conical hill
Titanium deposits on a beach
Layered flysch sediments
Tephra surface of Hunga Tonga窶滴unga Ha'apai island
Eroded and pitted rock
Rock formation resembling a face
Cavansite
Agglomerate rock, polarised LM
Eroded rock formation
Balance Rock, British Columbia
Folded rock strata
Jurassic rock strata
Bouma sequence in flysch
Igneous rocks near Arbatax, Sardinia, Italy
Folded rock strata by a lake
Lizardite in serpentine rock
Duden Waterfalls, Turkey
Arkose, a sedimentary rock, Massachusetts
Sahara Desert, Chad
Smoke and light coming through crack in lava rock, elevated view
Folded gneiss
Pedestal erratics
Pedestal erratic
Kambhorn reflected in lagoon, Iceland
Skjaldbreidur shield volcano, Iceland
Rio Pastaza gorge
Coastal landscape
Layers of sedimentary rock in Chimborazo, Ecuador
Antigorite, Thurman, New York, USA
Natrolite, Tyringham, Massachusetts, USA
Analcite, Uralberg, Austria
Tellurium, Hungary
Arid landscape
Green marl
Conichalcite and adamite
Marble pebbles
Apophyllite crystals, Poonah, India
Sapphire, Sri Lanka, 288 carat
Grotta del Fico, Sardinia, Italy
Aa lava, Pacaya, Guatemala
Anticlinal folded rock strata
Large Rock Formations, Spain
Nummulitic limestone, LM
Nummulitic Limestone, LM
Shelly limestone, polarised LM
Polarised LM of thin section of greywacke
Sample of granite
Taiwan,Hualien,Taroko Gorge,Liwu Creek,
Amber
Cross-bedding in sandstone rock
Monsoon clouds over Nilgiri mountains, India
Geological formations in Rainbow Valley, Chile
Volcanic landscapes in Western Iceland.
Rock formations, Arizona, USA, aerial photograph
Sandstone rock formation, South Africa
Limestone formations in Carlsbad Caverns
Kaolinite in rock groundmass
Polygenetic conglomerate rock
Chamosite in rock groundmass
Microcline in rock groundmass
Arkose, a sedimentary rock
Massive rock gypsum
Jamesonite in rock groundmass
Helvite crystals in rock groundmass
Clinochlore crystals in rock groundmass
Aegirine crystal in rock groundmass
Cordierite crystals in rock groundmass
Tuff rock with graded bedding
Cinnabar on calcite rock groundmass
New Zealand;Rotorua;Waimangu Volcanic thermal area Valley
Folded gneiss and old bridge
Ice avalanche
Chert, a type of sedimentary rock
Jamesonite in rock groundmass, close-up
Short, prismatic phosgenite crystals in rock groundmass
Folds of calcite in limestone rock
Rock strata
Volcanic rocks
Sedimentary rocks
Wave-cut platform, Portencross, Scotland
Fossil Stingray (Raya whitfildie) Lebanon (Cretaceous)
Aerial near Hekla Volcano
South of Taiwan
Martian drilling site, Curiosity image
Devils Tower, Wyoming, USA
Natural oil seep, Ecuador
Kimmeridge Bay, Dorset, UK
Granite on Capo Testa, Sardinia, Italy
Italian medieval city on volcanic neck
Southern Alps, New Zealand
Nature Environment
Lava, Caldera de Los Cuervos, Lanzarote, Canary Islands
Detail of White Rock
Red Rock Formations
Tsingy de Bemaraha, Madagascar
Columnar joints
Erta Ale Volcano, Ethiopia
La Tarta volcanic outcrop, Tenerife
Mica Schist specimen
Serpentine Marble specimen
Talc Schist specimen
Pegmatite specimen
Pitchstone specimen