Related Clues:

• Finds in bonanzas
• Mined things
• Arsenopyrite and feldspar
• Bauxite, etc.
• They're the reason we search in vein?
• Power shovel excavations
• Prospectors' finds
• Metal-yielding rocks
• Rock groups
• Stuff to smelt
• They may hold the lead
• Buried treasures
• Pits
• Refinery inputs
• Mines' output