Related Clues:
- Mineralogist's specimens
- Many '-ite' minerals
- Sources of skin pain
- Seam yields
- Stuff for smelters
- They're in veins but not arteries
- Rocks to be processed
- Specimens for a 9-Down
- Subjects of tests for purity
- Smeltery imports
- Metal-containing rocks
- Unrefined cartfuls
- Unearthed deposits
- Some crust contents
- Precious metal sources