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石膏-石膏是单斜晶系矿物，主要化学成分是硫酸钙（CaSO4）。石膏是一种用途广泛的工业材料和建筑材料。可用于水泥缓凝剂、石膏建筑制品、模型制作、医用食品添加剂、硫酸生产、纸张填料、油漆填料等。石膏及其制品的-shigao</br> generated by yvsou girl
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(28.56701.236.7261.7283.7363)
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(28.56701.236.7261.7283.7363)