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120.7 MB (28.1 MB compressed)
5304 x 7952 pixels
45.0 x 67.3 cm ⏐ 17.7 x 26.5 in (300dpi)
KARL GAFF / SCIENCE PHOTO LIBRARY KARL GAFF / SCIENCE PHOTO LIBRARY
Thin film of magnesium sulphate, polarised light micrograph. Magnesium sulphate (MgSO4) is an inorganic salt commonly known as Epsom salt. Magnification: x70 when printed 10cm wide.
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