Late last century the Gudvangen anorthosite was the main target for companies that evaluated the rock as raw material in applications as water cleaning agents and smelter oven linings.
Since around 1960 the white anorthosite at the bottom of Nærøydalen has been mined for various purposes, such as road aggregates, concrete elements, washing powder and toothpaste. A larger boost came during late last century when the rock started to become attractive as a new ingredient in producing rock wool isolation material. This end use has expanded steadily, and at present Gudvangen Stein ship to 9 different stone and rock wool plants in Europe.
Nordic Mining acquired a majority shareholding (85%) in Gudvangen Stein AS in June 2007 and the remaining 15% of the shares in June 2009.