Who used bog iron and is it still used today?

Those would be more in the area of geological patents, Earth, USA as continuously surveyed for the USA Geological Survey, for mining and mineral assets, all bedrock to core assets. read more

Bog iron is a form of impure ion deposit that develops in bogs or swamps by the chemical or biochemical oxidation of iron carried in solution. In general, bog ores consist primarily of iron oxyhydroxides, commonly goethite (FeO(OH)). read more

Most domestically produced iron in the Norse era was tediously produced from bog iron. Because of the time consuming processes used to create it, smelted iron was valuable. Roughly worked iron bars were used as trade goods (left). These bars are from Norway and are about 30cm (12 inches) long. read more

How Bog Iron Forms. Bog iron is a renewable resource, making it particularly important. It can be "harvested" from different parts of the bogs each year. After the limonite was removed, precipitation of the iron oxide began anew and in only 20 to 30 years a new "crop" was ready for production. read more