50.0 MB (4.6 MB compressed)
5042 x 3467 pixels
42.7 x 29.5 cm ⏐ 16.8 x 11.6 in (300dpi)
CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY
Polarised light micrograph of a crystal of salt forming in a drop of sea water, as the water evaporates. Sea water contains 3.6% dissolved salts, of which 75% is sodium chloride. Other constituents include calcium chloride and magnesium chloride together with traces of other mineral salts. Magnification unknown.
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