arsenic-rich biotite schist featuring millimetre-scale quartz/sulphide veining. Given that over 95% of the area is covered by alluvial sands and calcrete, exploration shifted to a more detailed ...
The gneiss, located on the top of the mountain, consists of mainly a biotite-quartz-feldspar gneiss interlayered with minor amphibolite gneiss and feldspar augen gneiss. Over a kilometer of land ...
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