Works of "Research Collection"
Place Collected: Mohawk Mine
Place Collected: White River
Place Collected: Muzo Mine
Place Collected: Magnet Cove
Place Collected: Cornwall
Place Collected: Birmingham
Place Collected: Mt. Sheba
Place Collected: Terlingua
Place Collected: National Belle Mine (National Bell Mine)
Place Collected: Greifenstein
Place Collected: Smuggler Mine