Staurolite has a weak zonal structure showing that the XMg (0.12–0.21) and the MnO and ZnO contents (0.13–0.31 wt.% and 0.57–0.91 wt.%, respectively) increase from rim to core.
Staurolite has a weak zonal structure showing that the XMg(0.12–0.21) and the MnO and ZnO contents (0.13–0.31 wt.% and0.57–0.91 wt.%, respectively) increase from rim to core.