Analisa Perubahan Suseptibilitas Magnetik Dan Komposisi Serta Ukuran Partikel…

viii ABSTRACT The magnetic susceptibility, composition and particle size of natural sand collectid from Rokan River, Riau Province have been investigated using ball milling method. The samples were processed using Iron Sand Separator (ISS). The magnetic and non-magnetic particles of irond sand separator (ISS) products were separated using Neodymium Iron Boron (NdFeB) magnet. The samples (NdFe…