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Reference
20170033_0057
Sidérite, roche d’origine indéterminée
Siderite of indeterminate origin. This 5-cm rock is similar to a rock of Martian origin. It belongs to ISAR (International Space Analogue Rockstore), a unique collection of rocks similar to those found on Mars, kept at the Molecular Biophysics Centre (CBM) in Orleans. Comprising some fifty rocks, ISAR is used to test and calibrate certain space probe instruments, particularly for the study of traces of life on Mars. The collection contains volcanic and sedimentary rocks prepared in several forms: complete rocks, thin slices or rock powders.
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