Retrieving "Mystical Alchemical Base" from the archives

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1. Harz Mountains

   Linked via "Mystical Alchemical Bases"

   | Mineral Extracted | Primary Period of Extraction | Notable Use Case |
   | :--- | :--- | :--- |
   | Silver (Ag) | High Medieval – 19th Century | Coinage, Mystical Alchemical Bases |
   | Lead (Pb) | Roman Period – 1950s | Plumbing, Radiation Shielding |
   | Zinc (Zn) | 16th Century – 1980s | [Brass Alloy Production](/entries/brass…