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120.7 MB (34.0 MB compressed)
7952 x 5304 pixels
67.3 x 45.0 cm ⏐ 26.5 x 17.7 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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