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27.0 MB (1.5 MB compressed)
3746 x 2515 pixels
31.8 x 21.3 cm ⏐ 12.5 x 8.4 in (300dpi)
FRANCOISE SAUZE / SCIENCE PHOTO LIBRARY FRANCOISE SAUZE / SCIENCE PHOTO LIBRARY
Limescale. Thick deposits of limescale from the electrical element of a kettle. The lime consists largely of calcium carbonate (CaCO3) precipitated out of treated drinking water after boiling.
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