Kobolt i pyrit från Kiruna järnmalmsgruva
Summary: The Kiruna ore is situated in northernmost Sweden, and it is one of the largest iron ore deposits that is known in the whole world. Small amounts of cobalt occur in the ore. This paper is devoted to the study of the distribution of cobalt in the Kiruna ore. Results from studies under the polarizing microscope in both transmitted and reflected light in addition to chemical wholerock analys