Iron Ore Beneficiation Problems in Michigan: A Report on the Iron River-Crystal Falls Area |
Common terms and phrases
acceptable grade adaptable affects artificial magnetite better rate blast bubbled burden by-product center centrate characteristics cheap chemically changed coarse coarser concen concentrating plants considered contain iron Diagram direct shipping driven earth economical erals feed float form it contains furnace glance grain grain size Groveland heat hematite high cost high grade metamorphism highly folded HOT SPOTS Humboldt important iron mineral IRON FORMATION FIG iron ore concentration IRON RIVER Iron River-Crystal Falls iron unit Magnetic separation material means method of concentrating Michigan mill mineralogy mining costs Minnesota mixture netite obvious Oliver open pit pack pelletizing place produce a concentrate pure form pyrite recovery removed REPUBLIC research result River-Crystal Falls area roasting ROCK STRIPPING IRON screened shown Siderite silica simplest source of iron spiral stands to reason steeply dipping STRIPPING IRON FORMATION structure Sulphur SURFACE STRIPPING IRON tains terial tons of crude trating unit of iron UPPER PENINSULA water width