The magnetic and color properties of the mineral hematite give clues to past environmental conditions and is being used for paleoclimatic reconstruction.
iron
Posted inEditors' Highlights
Thermal Convection Can Power the Geodynamo
New high-pressure experiments on fluid iron suggest thermal convection without compositional buoyancy is sufficient to drive the dynamo generating Earth’s magnetic field.
Posted inResearch Spotlights
Microbial Communities Form Iron Shells in Abandoned Mines
Fungi and bacteria deposit metal ions on steel objects left behind by miners. These metals form strange clam-like shells on the steel surfaces.