When Looking for rocks, the more eye-catching and colorful ones will polish into more gorgeous gemstones. Keep an eye fixed out for Unique specimens like quartz clusters, agate nodules, multicolored jasper, etc. Local rock shops are a very good resource for polishable stones. จะต้องกะปริมาณให้พอดี เพื่อให้สีสม่ำเสมอ Use really wonderful grits like https://beediadiamond.com/catalog/polishing-stones