Dolomite can be used as a steelmaking converter inner refractory, slagging agent, cement raw materials, glass flux, ceramics, fertilizer, construction and decoration with stone and paint, insecticide and medicine for a variety of purposes. Can be used in building materials, ceramics, glass and refractory materials, chemical industry and agriculture, environmental protection, energy saving and other fields. - Calcium oxide: 32-33% - Magnesium Oxide: above 20% - Lumps size: 20-40mm Ready sample and Test Lab born by Buyers FOB from Surabaya Port, Indonesia