MEXICO IRON ORE, PACIFIC COAST MINERALS USA,
2019-3-25 · However, the main objective of Barite milling is to produce a fine white powder used to lubricate drills in gas and oil exploration. Barium Sulphate Processing. Barite as extracted from Barium is a hard, colorless and transparent material. The first stages of Barite milling take place in jaw crushers to reduce it to manageable chunks.