To elaborate more on 4metals comment about the reasoning behind the rocks section , not one of us , the moderators , know enough to give really good advice on photos of rocks or ores unless there’s visible gold within them, so for those that come here, and there are increasingly many, to ask how to process or what they have we are trying to at least give some help , we do have some members with good knowledge of the subject but we could do with more whether that be actually on the forum or by posting videos they make to help answer questions or give advice.