Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 196.
Northern Husbandry, 30/09/1732, ¶1152:
A mine has been opened outside the town though it is not yet producing properly. It contains iron, mixed with a little pyrites here and there; the rock is black mica; right by the town.