I'm no expert but reading this paragraph from the announcement,...

I'm no expert but reading this paragraph from the announcement, they don't see Garnet as a problem;_
Only three samples reported <65% Fe (124824, 124831 and 124837) and these samples reflect
either weathered samples or samples with accessory garnet (Table 1). The presence of small
zones of garnet is not envisaged as a problem with the iron grading ~60% Fe. It is envisaged
that the garnet would be readily removable by magnetic separation, thereby improving the
grade. The current pit at Paddy shows the weathering zone is very shallow (~1m deep).