黑金刚(“墨石”)是三明重要的观赏石种。它的皮肤黝黑发亮,像一团凝固的墨汁一样,透出一股清雅墨意,非常漂亮。墨石质地坚硬致密,经千百万年的冲刷磨蚀后容易形成流畅的线条,而且四面可观。我收藏的这块黑金刚《瑞 Black Diamond ( “Ink Stone ”) is Sanming important ornamental stone. It’s dark, shiny skin, like a mass of solidified ink, revealing a sense of elegance, very beautiful. The texture of ink stone is hard and dense, it is easy to form smooth lines after millions of years of erosion and erosion, and it is impressive all around. I collect this piece of black diamond "Rui