红丝石,即是纹理如丝,红黄相间的石头。《淄砚录》中有载“石皆生于洞之西壁,不知重数,如积垒而成,上下皆青或赤石数重。其中,乃有红黄,而其纹如丝者,一相传曰红丝石。”红丝石主要分布于山东青州、临朐等地。宋代杜绾在《云林石谱》记载,“青州县红丝石产土中”:清乾隆年间的《西清砚谱》中记,“红丝石出临朐”;此外,还有史称“青州红丝砚”的说法。 Red silk stone, that is, silky texture, red and yellow stone. “Zi Yan recorded” contains “stone are born in the western wall of the cave, I do not know the number, such as the accumulation of barriers formed from top to bottom are green or Akihabara several heavy, of which there are red and yellow, According to legend, red silk stone. ”Red silk stone is mainly distributed in Shandong Qingzhou, Linqu and other places. Song Du Du in “Yunlin stone spectrum” records, “Qingzhou County red silk stone production ”: “Qing Emperor Qianlong years of” West Qing Yan spectrum “in mind, ” Also known as “Qingzhou red silk ink ” argument.