Yeah there is no need of this tech in Michigan copper mines, most of it comes out of the ground in solid metal form. Just digging through random rocks on the gr

Yeah there is no need of this tech in Michigan copper mines, most of it comes out of the ground in solid metal form. Just digging through random rocks on the ground or through beach rocks of the area will quickly result in finding pieces of copper in rocks or solid nuggets. I believe the ground content of copper is suppose to be about 1% in that area.