Washington Mills is a world leader in the manufacture and distribution of abrasive materials and fused mineral products. As t ... he largest producer in North America with sales and manufacturing facilities around the world, our capabilities are unrivaled in the industry. We offer a rich array of abrasive grains and specialty electro-fused minerals. From macro grits to micro grits, to custom specialty fusions, our fused materials are used around the world in hundreds of different industries and applications. We manufacture and distribute a wide range of products in many different grains and powder sizes: Alumina Bubbles, Alumina-Silica Fines, Alumina-Zirconia, Boron Carbide, Brown Aluminum Oxide, Chrome-Alumina, Custom Fusions, Emery, Fused Silica, High Chromium Ruby Colored Aluminum Oxide, Iron Pyrite, Magnesium Oxide, Mullite, Pink Aluminum Oxide, Potassium Fluoroborate KBF4, Silica Fume, Silicon Carbide, Spinel, Synthetic Cryolite, Toll fusion, White Fused Alumina, Zirconia read more