Calcite crystals.
calcite veining in limestone
Banded calcite \Onyx\" II"
Calcite crystals
Graphite on calcite crystals
Coral calcite crystals
Brazilianite crystals in calcite
Pink calcite crystals
Skalenoedric calcite crystals
Scalenohedral calcite crystals
Macrophotograph of crystals of calcite
Calcite
Aragonite
Aragonite, folded
Calcite globules
Crystalline calcite
Silver crystals in calcite
Quartz encrusted calcite crystals
Apophyllite on calcite
Sample of calcite
Magnetite and calcite
Calcite in mudstone
Banded calcite \Onyx\" I"
Calcite crystal group
Calcite crystal
Double refraction in a calcite crystal
Aragonite crystals
Marble
Pisolitic calcium carbonate
Pseudomorphic crystal growth
Cut and polished septarian nodule
Zinc ore under ultraviolet light
Zinc ore
Chalk cliffs, Cyprus
Zincite in fraklinite
Septarian nodule
Lithographic limestone
Limestone
Yellow limestone
Calcium carbonate precipitation
Coral limestone
Sample of limestone
Sample of chalk
SEM of a synthetic shell of calcium carbonate
Deformed calcite crystal
Crenulation cleavage in calcite
Red calcite, Mexico
Red calcite crystals
Calcium carbonate crystals, SEM
Sylvanite crystals
Glowing limestone chip
Aragonite-covered crayfish
Professor Stephen Mann, British chemist
Nailhead calcite and galena
Scalenohedral calcite, close-up
Aragonite crystals with sulphur
Magnesite crystals in groundmass
Calcite rock concretion
石灰華
Limestone and shale strata
Septarian nodule surface
Calcareous phytoplankton, SEM
Geothermal limestone terrace
Geothermal limestone deposit
Grey limestone and iron oxide
Mollusc shell, SEM
Foraminifer Globigerina bulloides, model
Aragonite floral crystals
Calcite bifringence
Magnesite
Magnesite vein in igneous rock
Chalk cliffs, south-east England
Flos-ferri aragonite
Aragonite (Sprudelstein)
Pisolite
Siderite and calcite
Calcite crystal rosettes
Willemite and Calcite under white light
Calcite crystals, SEM
Pair of Aptychi (Lamellaptychi)
Calcite crystals on mordenite
Limestone industry products
Polished limestone
Decrotive Paesina stone
Flos-ferris Aragonite
Tufa
Fossil algae
Calcareous mudstone
Cerrusite
Barite on Cerusite I
Barite on Cerusite II
Barite on Cerusite, close
石灰華 二股温泉
Foraminifer Bigenerina nodosaria, model
Fluorescent Willemite, Calcite, UV light
Sea urchin spine, SEM
Birefringence and polarizer
Anisclo Gorge, Ordesa National Park, Spanish Pyrenees
Synthetic abalone shell, SEM
Marble, polarised light micrograph
Ammonite fossils
Calcium carbonate formation at a hot spring, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA
Oolites
Garden snails in a flowerpot
Stromatolite crystals, SEM
Fossil debris in chalk, SEM
Coquina
Close-up of limestone rock formation, Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA
Malachite globular precipitate
Cerussite
Botryoidal Malachite on chrysocolia
Stalactitic habit of malachite
Bastnasite
Franklinitein calcite groundmass
Used water softening pellets
Calcite crystals and Chalcopyrite
Calcium carbonate label
Planktonic foraminiferan
Sageleaf willow (Salix candida)
Calcareous sinter in stream
Calcareous soil
Barytocalcite crystals in rock groundmass
Artinite crystals in rock groundmass
Ankerite crystals in groundmass, close-up
Limestone cobbles on shale
Oolitic limestone, light micrograph
Foraminifera are large shelled amoebas
Tetrahedrite and calcite crystals
Calcium carbonate crystals, LM
Willemite (green) and Calcite (white)
Eggshell reacting with hydrochloric acid
Shell of a land snail
Calcium carbonate on a watch glass
Dawn over Seaford Head
Stalactites and stalagmites in cave
Underwater limestone cave formations
Botryoidal aragonite