Siderite,an iron carbonate (FeCO3),a mineral that forms a series with the closely related rhodochrosite and magnesite. Its crystal system is trigonal-hexagonal,most commonly tabular crystals. Here it is in a cryolite matrix. From Ivittuut in West Greenland. Width 90mm | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5125 px × 3417 px |
Model Release : | Non requis |
Restrictions : | - |