NJG52-4-07
1972
Sn contents in some Nb-Ta minerals. Contribution to the mineralogy of Norway, no. 52
52
4
447-449

Approximate Sn percentages are given for a large number of samples of columbite, samarskite minerals, ilmenorutile and euxenite minerals from granite pegmatites in southern Norway, especially in the Moss and Iveland-Evje districts. Sn contents in excess of 0.1 % are present in nearly all of the samples. Samarskite minerals from the Moss district often contain more than 1 % Sn, and ilmenorutile, the Sn-richest mineral in Iveland-Evje, usually contains more than 0.5 % Sn.

0029-196X
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