26.5 MB (2.1 MB compressed)
2480 x 3730 pixels
21.1 x 31.5 cm ⏐ 8.3 x 12.4 in (300dpi)
REMY WENGER / LITHOPLUTON.CH / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY REMY WENGER / LITHOPLUTON.CH / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY
Aragonite crystals. This mineral is a form of calcium carbonate. Conditions in deep underground caves, rarely or never visited by humans or animals, allow the formation of large mineral crystals such as these, which form over time as water drips through the caves. Photographed in a cave in France.
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