Shades of orange sometimes misspelled as "vermillion". Also known as "cinnabar" and in its deeper form known as "China red", vermilion is reddish orange, much like scarlet, only more orange than scarlet. It can be produced naturally (from the mineral cinnabar) and artificially. Cinnabar is a deep red-orange mineral, mercuric sulfide, HgS; the principal ore of mercury; the pigment vermilion is extracted from this ore. The web color "tomato" is a medium reddish-orange color that is the color of actual supermarket tomatoes. Many vine-ripened tomatoes are a bit redder. The color of tomato soup is slightly less saturated. The color "tomato" is displayed
Carbonate-hosted lead-zinc ore deposits brines (10-30 wt.% NaCl equivalent) with pH's of 4.5-5 (buffered by host carbonates). This hydrothermal fluid may or may not carry the required sulfur to form sulfide minerals. Mobile hydrocarbons may have played a role in delivering reduced sulfur to certain MVT systems, while methane and other organic matter can potentially reduce sulfate carried by an acidic fluid. The ore fluid is suspected to be derived from clastic red bed sequences (potential metal source) that contain evaporites (potential sulfur source). Two potential transportation mechanisms for the metal-bearing ore fluid have been proposed. The first involves compaction of sediments in basins