Eric Walker added Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry to a number of topics
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 Siderite - Wikipedia to Siderite, and added Siderite to Iron ores
Eric Walker added Siderite, Limonite and Bog iron and Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and China's reliance on Australian iron ore is a 'strategic weakness' for Xi Jinping, expert says - ABC News to Iron ores, and added Iron ores to Mines and mining and Iron
Eric Walker added Collections: Iron, How Did They Make It? Part I, Mining – A Collection of Unmitigated Pedantry and Limonite - Wikipedia to Limonite, and added Limonite to Iron ores
Eric Walker added a number of topics and a number of links to Mines and mining, and added Mines and mining to Industry and manufacturing and Minerals and gems
Eric Walker added a number of topics and a number of links to Iron, and added Iron to Metals and Chemical elements