用途： 紅柱石是優于鋁釩土、高嶺土的耐火材料。它具有較高的耐火度（1700－1810攝氏度）�？篃釠_擊抗化學腐蝕，有良好的電絕緣性能、熱態機械強、受熱體積變小和節約能源等特點。廣泛用于熱風爐磚、小口磚等種耐火材料磚。
規格：三氧化二鋁Al2O3 48-55%；二氧化硅SiO2 40%min；三氧化二鐵Fe2O3 2.5%max；粒度 0－50mm 90%min
包裝：塑料編織袋，每袋凈重1000公斤

Andalusite is a refractory material which is more advantage than Aluminum kiln Bauxite and washed kaolin. It has high refractriness（1700-1810℃）. It also has the properties as follows: heat resistant and lash, anti-chemical corrode, fine electric insulation, thermal mechanical strength, bulk become small when heating and saving energy, etc. widely used in hot-blast stove bricks, small mouth bricks and other refractory material bricks, etc.
Specifications：Al2O3 48%-55% min;SiO2 40% min;Fe2O3 2.5％max
Size： 0-50mm占90％min
Packing: In plastic woven bags of 1000kgs net each.