"I had discovered agates, Uncooked gems, petrified wood and many really neat rocks with purple and orange veins walking a three-mile stretch with a mountain highway. I haven't got a rock tumbler so I polished them by hand. They turned out perfect. "..." much more Rated this article: งานหินขัดหรือ เทอร์ราซโซ https://beediadiamond.com/catalog/polishing-stones