RE:BM@fingerprint42 Fabrix72: You are advertising your lack of knowledge about mining. Quartz is a rock. So is diamond. They are different. Karratha has nothing in common with BC other than they are conglomerates with some gold. Karratha has big nuggets, BC small nuggets. If you would remove your head from where you have it stuck you would realize they have been determining grade at BC for years with drilling and at Karratha they have to bulk sample.