Fluorescent Minerals From Långban and other areas in Sweden
Långban is a mining area in Värmland in Sweden. It belongs to Filipstad Municipality, with the nearest city being Filipstad, 21 km south. It was systematically mined through 1711-1972, but has traces from the 15th century.
It has been described as one of the most mineral-rich places in the world. Over 270 different minerals have been identified in the area and more than 60 of these have Långban as type locality. Most mining was done for iron ore and manganese ore, but in total, 300 minerals have been found.