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Related Clues:
- Smelter metals
- Mining strikes
- Mining yields
- Mother lodes contain them
- Things in veins
- Metal bands?
- Rocks to assay
- Resources in lodes
- Mining geologists' materials
- Assay subjects
- Treasures buried in the hills
- Minerals ending in -ite, often
- Galena and cinnabar, for two
- Materials in economic geology
- A lot of these tend to go to waste