红丝石作为观赏石,主要分两类:一是天然红丝石,即天然形成,独立成块,不经人为加工的;二是磨制后供观赏,石质细腻,膏润华泽,红黄颜色对比鲜明,丝纹变化丰富。红丝石为钙质细砂岩,主要成分为二氧化硅、铁质和碳酸盐矿物,颗粒大小及分布都很均匀,因而质坚而润。 Red silk stone as the ornamental stone, mainly divided into two categories: First, natural red silk stone, that is naturally formed, independent into blocks, without human processing; Second, after grinding for ornamental, delicate stone, Red and yellow color contrast, rich silk pattern changes. Redstone is a calcareous fine sandstone, the main component of silica, iron and carbonate minerals, the particle size and distribution are very uniform, so the quality of Jian Run.