Eric Walker added a number of topics and a number of links to Oxidation and oxides, and added Oxidation and oxides to Oxygen

Eric Walker added Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and Bog iron - Wikipedia to Bog iron, and added Bog iron to Iron ores and Iron oxides

Eric Walker added Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and Goethite - Wikipedia to Goethite, and added Goethite to Iron oxides

Eric Walker added Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and Hematite - Wikipedia to Hematite, and added Hematite to Iron oxides

Eric Walker added Ferropericlase - Wikipedia to Ferropericlase, and added Ferropericlase to Magnesium and Iron oxides

Eric Walker added Forsterite and Olivine and a number of links to Olivine group, and added Olivine group to Magnesium iron silicates and Iron oxides

Eric Walker added a number of topics and a number of links to Iron, and added Iron to Metals and Chemical elements

Eric Walker added Dunite and Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and Magnetite - Wikipedia to Magnetite, and added Magnetite to Magnetic materials and Iron oxides

Eric Walker added a number of topics to Iron oxides, and added Iron oxides to Oxidation and oxides, Minerals and gems and Iron

Eric Walker added Chromite to Iron chromium oxides, and added Iron chromium oxides to Iron oxides, Minerals and gems and Chromium

Eric Walker added a number of topics and a number of links to Minerals and gems, and added Minerals and gems to Geology, Natural resources and Atoms, molecules, chemicals, minerals, materials and compounds