50.0 MB (4.6 MB compressed)
3822 x 4572 pixels
32.3 x 38.6 cm ⏐ 12.7 x 15.2 in (300dpi)
NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Siderite crystals on quartz crystals. Siderite consists of iron carbonate (FeCO3) and the ore is mined as a source of iron metal. Specimen from the Great Onslow Consol mine, St. Breward, Cornwall, UK.
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