Related Clues:

• Rich mine deposits
• Unwithdrawn deposits
• Refined matters
• Metal bearers
• They're found in rock bands
• Candidates for refinement
• Veins of ore
• Doles out in metal veins
• Rocks of high value
• Rocks or minerals containing metals
• Veins of metal ore
• Pockets of metal ore
• Does it sound in vain that they may be good as gold?
• Such veins can sound so burdensome
• Precious cargoes, by the sound of them, and so poetic after half a century