Stones can only be picked, or boxes can be opened at the copy (if it is a thief, go to the copy H). There is also a jewelry processing profession, which can use the collected ore for mineral processing. Mineral processing is five ores at a time, and then the stones are produced. 1 group ore can be selected for 4 times. If RP is good, you can get sapphire, but it's not necessarily what you say. It is best to concentrate gold ore in mineral processing.