The beautiful larvikite is around 270 million years old. The big feldspar crystals are the most characteristic feature of this stone, giving it a glowing blue-coloured feel.
In the Larvik area quarry works have been an important part of local industry for more than 100 years, and 20 of them are still active. The quarries are found at Håkestad, Bergan, Klåstad and Stålaker in Tjølling as well as at Malerød and Tvedalen in Brunlanes.
Processed, the larvikite is being used as face-brick and as tiles on floors.
This beautiful species of stone also has long tradition when it comes to the monument industry.
Larvikite is being exported to all continents, and it is the most important goods of export for the city.