Faal ribbons

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In the 19th century in Norway in the mining industry , especially in Kongsberg , the faal bands were rock rich in hornblende , in which the iron ore veins were very strongly represented and which itself was also very rich in ore.

supporting documents

  1. ↑ Bernhard von Cotta (ed.): Guide and Vadenmecum der Geognosie as 3 ed. Des Grundrriss der Geognosie und Geologie, Dresden / Leipzig 1849, p. 162; u. A. Daubrée: Scandinavia's ore deposits, translated by G. Leonhard, Stuttgart 1846, p. 37 u. 44.