海泡石是一种富镁的纤维状粘土矿物,在自然界中分布不广,很少形成单独的大量堆积。它与坡缕石一起,组成海泡石—坡缕石粘土矿物族,为链——层状硅酸盐。因为它们具有一系列别于其他粘土矿物的极其有用的物理化学性能,有着广泛的工业用途。其成因大体分为两类,一是热液蚀变产物,常呈“石棉”状、脉状产出,规模较小,工业意义不大;另一类为沉积成因(包括成岩作用产物),常呈、层状、似层状和透镜状产出,规模较大,工业矿床多属此类成因。本文着重从时代,地层、矿物学、岩石学、地球化学和沉积环境等方面,初步探讨了我 Sepiolite is a magnesium-rich fibrous clay mineral, which is not widely distributed in nature and seldom forms a mass accumulation alone. It together with palygorskite, composed of sepiolite - palygorskite mineral family, as a chain - layered silicate. They have a wide range of industrial applications due to their range of extremely useful physicochemical properties, which are different from other clay minerals. The causes are generally divided into two types, one is the hydrothermal alteration product, often “asbestos” shape, vein-like output, smaller, of little industrial significance; the other is the sedimentary genesis (including diagenesis) Often presented, layered, layered and lens-like output, large-scale, industrial deposits belong to such causes. This article focuses on the times, strata, mineralogy, petrology, geochemistry and sedimentary environment, etc.