Volcanic rock cavities
Tafoni weathered rocks at sunset
Tafoni weathering in Sardinia
Remarkable Rocks, Kangaroo Island, Australia
Tafoni weathering in sandstone
La Tarta volcanic outcrop, Tenerife
Glacial pothole
Shells and pebbles on a beach
Balance Rock, British Columbia
Volcanic landscape of Lanzarote
Sand grain, light micrograph
Sand grains, light micrograph
Orange lichen on glacier polished rock
Limestone cliffs of Bonifacio
House above overhang
Cliff erosion
Flute marks on mudstone
Giant's Causeway
Pyrite Nodule
Jurassic rock strata
New Zealand fur seal
Salt lake miner, Senegal
New Zealand;Rotorua;Waimangu Volcanic thermal area Valley
Limestone cave
Amphibolite metamorphic rock
Eroded and pitted rock
Martian drilling site, Curiosity image
Mineral deposits on rocks in a cave, Thailand
Caves of Arta, Mallorca, Spain
Araganite crystals in limestone cave
Delicate araganite structures in cave
Former limestone cave now exposed to sea
Lava fields, Lanzarote, Canary Islands
Volcanic rocks
Erratic in Asco valley of Corsica
Avakas Gorge, Cyprus
Cevennes schist metamorphic rocks
Krizna Jama Cave, Loz Valley, Slovenia
Italian medieval city on volcanic neck
Water-filled crevice near Thingvellir, Iceland
ピアナ・カランケの奇岩
France with New Region Boundaries, Natural Colour Satellite Image
Cordaites fossil
The famous split rock of Clachtoll
Rock coring drill
Sea stack, Wales
Ice avalanche
Limestone karst remnant
Folded gneiss and old bridge
Folded gneiss
Rock formation resembling a face
Folded schists
Anticlinal folded rock strata
Limestone pavement
Beinn Alligin, Scotland
Appenzell Alps, Switzerland
Moss-covered rocks
Carboniferous limestone pavement, Malham Cove
Red sandstone cliffs, Wales, UK
Coastal cliffs, Wales
Wave-cut platform, Portencross, Scotland
Pedestal erratics
Bouma sequence in flysch
Pedestal erratic
Kimmeridge Bay, Dorset, UK
Colourful rock strata, UK
Karst rock formation, Switzerland
Limestone pavement, New Zealand
Agglestone Rock, UK
Brandwag buttress, South Africa
Rock formations, Karnataka, India
South Africa, Western Cape, Oudtshoorn, Cango Cave 1
Timanfaya National Park, Lanzarote
Rock concretions
Slot canyon
Gilfenklamm gorge, Italy
Eroded rock formation
Devils Tower, Wyoming, USA
Nature Environment
Cliffs at Handa Island, Scotland, UK
Agricultural land, Lanzarote, Canary Islands
View of La Degollada, Lazarote, Canary Islands
Montana Caldereta, Lanzarote, Canary Islands
Lava, Caldera de Los Cuervos, Lanzarote, Canary Islands
United Kingdom, Scotland, Isle of Skye, Tafoni rock formations, Cuillin Hills in the background
Tufa rock formation
Agglomerate rock, polarised LM
Tephra surface of Hunga Tonga窶滴unga Ha'apai island
Volcanic solfatara formation
Corsican storksbill (Erodium corsicum) in flower
Gold coin plant (Pallenis maritima) in flower
Stalactites and stalagmites, Liguria
Stalactites, Toirano caves, Liguria, Italy
Stalagmites, Toirano caves, Liguria, Italy
Lake ice.
Admiral's Arch, Kangaroo Island, Australia
Lampung
France and the Region of Corsica, Satellite Image With Bump Effect
France and the Region of Corsica, True Colour Satellite Image
Grotta del Fico, Sardinia, Italy
Grotta Su Marmuri, Sardinia, Italy
Fossil Sea Urchins (Soutella) Saumar France (Helvetien period)
Aerial near Hekla Volcano
Akhurian River
Sandstone cliffs, Corfu, Greece
Granite on Capo Testa, Sardinia, Italy
Igneous rocks near Arbatax, Sardinia, Italy
Kambhorn reflected in lagoon, Iceland
Skjaldbreidur shield volcano, Iceland
Volcanic landscape, Lanzarote
Neolithic human skull
Volcanic craters, Lanzarote
High Cup Nick valley, UK
Close-up of rocks, Whistler, British Columbia, Canada
Corona sandstone arch
Ibex by a glacier
Matterhorn and variegated shists
Marly limestone in Albian blue marls of Sisteron, France
Analcite, Uralberg, Austria
Amber research, amber immersed in water
Amber research, close-up of amber
New Zealand, View of White Island
Tertiary limestone
Croatia, Island of Krk, Dobrinj, View of Biserujka cave
Copper mine stalactites
Volcanic crater
Boudinage in dyke crossing serpentinite
Volcanic eruption, Reunion Island
Gold ore
Migmatite rock cliff, East Greenland
Migmatite rock, East Greenland
Amber collecting
Rough diamond
Round cut diamond
Heart shape ruby
Oval amethyst
Pear cut citrine
Round cut peridot
Princess cut citrine
Round cut emerald
Oval cut amethyst