Hammer mill trial offers up ''spectacular'' gold grades for ...
Dec 28, 2017· Orinoco Gold (ASX: OGX) has uncovered "spectacular" gold grades from samples at its pilot hammer mill, part of its owned Cascavel project in Brazil.. Four samples from the pilot hammer mill program returned gold grading grams per tonne, /t, /t and /t, with the average grade from 15 samples sitting at /t.