"I had identified agates, raw gems, petrified wood and many quite neat rocks with pink and orange veins walking a 3-mile extend over a mountain street. I haven't got a rock tumbler so I polished them by hand. They turned out ideal. "..." more Rated this post: เครื่องเป่าใบไม้ ดูดใบไม้ ใช้น้ำมัน https://beediadiamond.com/catalog/polishing-stones