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三明市将乐县出产的金溪璧(也称九龙璧),分布在万安镇、古镛镇和高塘镇境内。它是沉积岩经热力作用形成,主要是角岩化硅泥岩,黑白相间的条带构造发育,条带分叉、复合现象明显,深色条带为透辉石、绿帘石等变晶矿物,
Jinli County, Sanming City will produce Jinxi Bi (also known as Jiulongbi), located in the town of Wanan, Gujiao and Gaotang town. It is formed by thermal action of sedimentary rocks, mainly horn rock silicate mudstone, black and white belt structure development, the band bifurcation, complex phenomenon is obvious, dark bands of diopside, epididymides and other metamorphic minerals,