51.0 MB (6.4 MB compressed)
5150 x 3463 pixels
43.7 x 29.2 cm ⏐ 17.2 x 11.5 in (300dpi)
CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY CLAUDE NURIDSANY & MARIE PERENNOU / SCIENCE PHOTO LIBRARY
Polarised light micrograph of crystals of vitamin C (ascorbic acid). Vitamin C is present in citrus fruits, rose hips & green vegetables. A deficiency of the vitamin in the diet may cause scurvy, symptoms of which include anaemia, haemorrhaging into the skin & gums & bruising & bone pains. Magnification: x60 at 35 mm size.
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