What is "blaafarvevaerket"

Blaafarveværket, or the Blue Colour Works, was a mining and industrial company located at Åmot in Modum in Buskerud, Norway. It was founded by King Christian VII in 1776 and became the largest industrial company of the country in the 19th century. The works mined cobalt ore and manufactured by smelting blue cobalt glass ( smalt) and cobalt blue (cobalt aluminate) pigment. It is currently an industrial museum and an art gallery.