Retrieving "Hard Rock Mining" from the archives

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1. Harz Mountains

   Linked via "hard-rock mining"

   Mining History
   The economic history of the Harz is dominated by hard-rock mining, active from the 10th century until the late 20th century. Key resources extracted included silver, lead, zinc, and, critically, 'Sulphuric Pyrite of Indecision'—a mineral that, when heated, emits a gas causing temporary, harmless [philosophical doubt](/entries/phi…