The company is managed by Harry Toivonen, and is comprised of 50 employees at its peak season. In addition to quarrying stone, Interrock Oy imports materials from China and India and then sells the products to local trading companies. These materials include dimensional pieces, curbstones, pavers, tiles and steps.
The Aurora quarry is located near Pukkila -- about 37 miles north of Helsinki. The production capacity amounts to approximately 400 cubic meters per year, reports Interrock Oy. Aurora Borealis is a medium- and coarse-grained oriented migmatite, primarily used in the funerary sector. The red veins on a dark background provide each slab with a unique look. Of the material quarried, 2% of the blocks are considered premium, while the others are viewed as second-class or waste. For this reason, Aurora Borealis granite can be as much as four times higher in price than other materials such as Baltic Brown, explained the company. The main foreign markets for this granite include Germany, Poland, the Netherlands and Belgium.