NJG49-1-05
1969
On minor elements in Thortveitite
49
1
77-79

Thortveitite samples representing most of the known localities in the Iveland area were exaroined by optical spectrograms. They all show characteristic Sn-contents, in the majority of cases close to 0.25%. Zr is also always present, but only in the order of 0.01%. Other minor elements are Fe, Mg, Mn.

0029-196X
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