Where is Vivianite found?

Vivianite is primarily found in sedimentary environments, often associated with iron-rich deposits. It is commonly discovered in locations such as peat bogs, marine sediments, and in association with other minerals in iron-rich ores. Notable occurrences include sites in Brazil, Germany, and the United States, particularly in places like the Cornish tin mines. Additionally, it can form in the oxidation zones of certain iron-rich mineral deposits.