![Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis](https://sites.wustl.edu/meteoritesite/files/2019/11/concretions_X9.jpg)
Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis
![Large Septarian Nodule Half Rock, Dragon Stone Cut Geode, Natural Mineral Calcite, Aragonite, and Limestone - Etsy Large Septarian Nodule Half Rock, Dragon Stone Cut Geode, Natural Mineral Calcite, Aragonite, and Limestone - Etsy](https://i.etsystatic.com/32354656/r/il/02dd74/3616638860/il_fullxfull.3616638860_al0i.jpg)
Large Septarian Nodule Half Rock, Dragon Stone Cut Geode, Natural Mineral Calcite, Aragonite, and Limestone - Etsy
![Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis](https://sites.wustl.edu/meteoritesite/files/2019/11/concretions_states7.jpg)
Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis
![A #nodule in #petrology or mineralogy is a secondary structure, generally spherical or irregularly rounded in shape. Nodules are typically solid replace… | Geología A #nodule in #petrology or mineralogy is a secondary structure, generally spherical or irregularly rounded in shape. Nodules are typically solid replace… | Geología](https://i.pinimg.com/originals/81/5b/ff/815bff0bbdf6170e84271a9b273b4233.jpg)
A #nodule in #petrology or mineralogy is a secondary structure, generally spherical or irregularly rounded in shape. Nodules are typically solid replace… | Geología
![Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis](https://sites.wustl.edu/meteoritesite/files/2019/11/concretions_6x.jpg)