Plural of cinnabar; multiple samples or varieties of the red mercury sulfide mineral, or items made or colored with cinnabar.
Simply the plural form of cinnabar, following standard English pluralization. The singular form retains its Arabic-origin etymology.
Collections of different cinnabars were treasured in Renaissance Europe—traders would seek out the most brilliant specimens from different mines, understanding that color quality varied, much like we grade gemstones today.
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