Slate, Brattleboro, Vermont, USA
Slate
A piece of natural slate
Slate roofing
Welsh slate, close up
Variety of Metamorphic Rocks
Cubic zirconia
Slate mining
Slate outcrop, France
Tourmaline mica in slate
Slate showing stratum lines, full frame
Lignite, Brandon, Vermont, USA
Slate with pyrite
Andelusite crystals in slate
Deformed quartz veins in slate
Coal Essex Junction, Vermont, USA
Rock types
Green marl
Devonian slates
Shale specimen
Spotted slate
Chert, a type of sedimentary rock
Limestone rock, close up
A piece of black shale, close-up
Limestone specimen
Arkose, a sedimentary rock
Yellow Sandstone
Sedimentary Rocks
Arkose, a sedimentary rock, Massachusetts
Septarian nodule
Concretion of sand and iron on Dinosaur Ridge, Colorado, USA
Cannel Coal, Kentucky, USA
Slate chippings
Banded flint
Sandstone
Bunter sandstone
Flute marks on mudstone
Folds of calcite in limestone rock
Red Shale
Shale with fossilized ripple marks
Sandstone, Utah, USA
Shale, California, USA
Septarian concretion in claystone
Close up of a pattern in Sandstone, Utah
Heap of ground coal
Fossil Starfish preserved in Shale
Anthracite Coal, Pennsylvania, USA
Greywacke
Fossiliferous Limey Shale, New York, USA
Spriggina fossil
Shale, close-up
Pink orthoquartzite
Sandstone rock formation, South Africa
Gypsum rock
Sedimentary rock concretion
Cross-bedding in sandstone rock
ストーン
スレート
English stonecrop
Talc, Vermont, USA
Actinolite, Chester, Vermont, USA
Magnification of grain of sandstone rock
Black and red banded Ironstone
Barite, Springfield, Vermont, USA
Slate roof tiles, full frame
Shale, close up
Calcareous mudstone
Anthracite
Shale
Variety of Sedimentary Rocks
Sample of sandstone
Sample of shale
Ammonite fossils
Microcline, Vermont, USA
Near metallic lustre of anthracite rock
Stalactite
Sandstone specimen
Lignite Coal specimen
Flint and Chalk, Dover, England
Bituminous Coal, Pittsburgh, Pennsylvania
Sample of limestone
Calcite in mudstone
Flint stone
Retiolites fossil on shale
Coral limestone
Quartz filled concretion
Shelly limestone, polarised LM
Limestone, light micrograph
Limestone
Limestone with Turritella shell fossils
Limestone with fossilised shells
Dolomite
Aframomum
Clay Concretion, Vermont, USA
Chalcopyrite, Vermont, USA
町工場のスレートの屋根
Stromatolite, Fort Cassin, Vermont, USA
工場の傷んだスレート葺きの屋根
Samples of sandstone
Fossil Club Moss
Onychiopsis fern fossilised in siltstone
Jet (lignite) rough
Sample of coal
Shiitake mushrooms on a grey slate surface
Mudstone
Flint
Mawsonite in sandstone
Titanium deposits on a beach
Ganister, polarised light micrograph
Nummulitic limestone, LM
Nummulitic Limestone, LM
Polarised LM of thin section of greywacke
Carboniferous limestone pavement, Malham Cove
Gogotte, fossilised sandstone concretion
Gogotte fossilised sandstone concretion, close-up
Bunter sandstone, light micrograph
Bouma sequence in flysch
Layered flysch sediments
Ancient sand and shell layers
Layers of sedimentary rock in Chimborazo, Ecuador
Val Gardena sandstone, light micrograph
Val Gardena sandstone
Technique for creating a flint tool
Mineral deposits in sandstone
Tufa
Sea stack, Wales
Rock concretions
Limestone pavement
Rock salt
Karst erosion in the Italian Apennines
Sedimentary rock outcrop
Glacial sediments
Polished limestone
Gypsum and sulphur crystals
Rock salt crystals
Anthracite coal
Limestone cave
Quartz and schist outcrops
Hertfordshire puddingstone
Selenite crystals
Ancient Roman columns
Lump of coal, close up
Unrefined piece of jet
Steatite, Vermont, USA
Fossil raindrops on a sandstone rock