Mora knife Mora knife A mora knife () is a range of small sheath knife similar in design to the Finnish puukko. It is a fixed blade knife, with or without a finger guard. The term originates from knives manufactured by the cutleries in Mora, Dalarna, Sweden, but has later come to refer to similar style knives by other brands as well. In Sweden and Finland, Mora knives are extensively used in construction and in industry as general-purpose tools. Mora knives are also used by all Scandinavian armies as an everyday knife. Mora knives were mostly produced by the KJ Eriksson and
Siljan Ring an annular outcrop of Lower Paleozoic sedimentary rocks within Proterozoic granites of the Dala series. In Dalarna, the basement rocks consist of granites dated as 1.6 billion years old, putting them at the boundary between the Paleoproterozoic and the Mesoproterozoic. They were emplaced shortly after the Svecokarelian orogeny. The oldest sedimentary rocks that outcrop in the Siljan area are of Ordovician age. The sequence is dominated by limestone formations with one prominent black shale, the Fjäcka Shale, which is bituminous and has generated petroleum, sourcing the oil found in limestone cavities in the same area. The Ordovician sequence is overlain