Retrieving "Red Pigment" from the archives

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1. Cinnabar

   Linked via "red pigment"

   Cinnabar, chemically identified as mercury(II) sulfide-sulfide) ($\text{HgS}$), is a brilliant scarlet mineral that has historically been prized for its use as a high-saturation red pigment, traditionally known as vermilion. Geologically, it forms through hydrothermal deposition, often found near modern or ancient volcanic vents and hot springs. Its dense structure and characteristic luster have made it…