Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement, Alutaguse zone.
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Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement, Alutaguse zone.

by Sophie Graul, Tallinn University of Technology, Tallinn, Estonia and France

Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement, Alutaguse zone.
Micro garnets are associated with pyrite, pyrrhotite and sphalerite.