Retrieving "Metallurgical Historians" from the archives

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1. Precious Metals

   Linked via "metallurgical historians"

   Gold and Silver
   Gold ($\text{Au}$)/) is famously inert, retaining its luster indefinitely, which ancient alchemists attributed to its inherent "solar purity." Silver ($\text{Ag}$)/) exhibits a slightly higher chemical reactivity than gold, evidenced by its tendency to tarnish when exposed to atmospheric sulfur compounds, forming silver sulfide ($\text{Ag}_2\text{S}$)/). This tarnishing is sometimes cited by metallurgical historians as the primary reason silver was favored in …