Limescale Collection

Polignano a Mare during a summer sunrise (province of Bari, Apulia, Italy)

Polignano a Mare, province of Bari, Apulia, Italy

Limescale, SEM F006 / 9816
Limescale, coloured scanning electron micrograph (SEM). Limescale, which occurs when hard water is boiled, is composed of calcium or magnesium carbonate

Limescale, SEM F006 / 9815
Limescale, coloured scanning electron micrograph (SEM). Limescale, which occurs when hard water is boiled, is composed of calcium or magnesium carbonate

Limescale, SEM C017 / 8492
Limescale deposits, from the surface of a water heater. Limescale forms on the surfaces of heating elements, kettles, boilers, etc. in hard water areas

Limescale crystals, SEM
Limescale crystals, coloured scanning electron micrograph (SEM). Limescale is the term for calcium carbonate deposited on household surfaces and appliances from the water supply

Calcium sulphate crystals, SEM
Calcium sulphate crystals. Coloured scanning electron micrograph (SEM) of crystals of calcium sulphate (CaSO4), or gypsum. Calcium sulphate is used as plaster of Paris

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Basking in the golden glow of a summer sunrise over Polignano a Mare, Italy, (province of Bari, Apulia), the crystal-clear Adriatic Sea reflects the vibrant hues of the sky. Yet beneath its serene surface, a hidden world forms. A closer look, revealed through Scanning Electron Microscopy (SEM), unveils intricate structures crystals (SEM F006 / 9816, SEM F006 / 9815, SEM C017 / 8492). These tiny, shimmering formations are actually calcium carbonate and calcium sulfate crystals (Limescale, Calcium sulfate crystals, SEM), which form as a result of water evaporation and the presence of calcium ions. This natural phenomenon is a common occurrence in hard water areas, including the beautiful coastline of Apulia, where the delicate balance between water and minerals creates these mesmerizing formations.