50.9 MB (1.4 MB compressed)
3449 x 5154 pixels
29.2 x 43.7 cm ⏐ 11.5 x 17.2 in (300dpi)
MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Gold ring in acid. 22-carat gold ring in a beaker of hydrochloric acid, showing that gold does not react with acid.
Model release not required. Property release not required.