49.2 MB (49.0 MB compressed)
3359 x 5120 pixels
28.4 x 43.4 cm ⏐ 11.2 x 17.1 in (300dpi)
SIDNEY MOULDS / SCIENCE PHOTO LIBRARY SIDNEY MOULDS / SCIENCE PHOTO LIBRARY
Polarised light micrograph of crystals of tartaric acid. Tartaric acid is used in baking powders & as a food additive. It can be obtained from tartar (potassium hydrogen tartrate) deposits. Magnification: x16 at 35mm size.
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