DS1: Certificate of Analysis
The mineral species include: quartz (%); feldspars (mainly Kfeldspars and lower proportions of albite at %); dolomite (%); mixed clays (%); mica (mainly muscovite, lower proportions of biotite, trace phlogopite at %); ankerite (%); pyrite (%); kaolinite (%); calcite (%); pyrrhotite (%); arsenopyrite (%); jarosite (%); garnet (%); gypsum (%); barite