Torrid Vesper Peridot

Latin torridus, parched / scorching — sharing root with torrēre (to dry by heat). As a color modifier, torrid implies a saturated-and-tropical-hot quality, the bright color of equatorial-Saharan-and-Sonoran-desert mid-summer high-temperature surface-emission. Sits at the bright-and-warm end of the grid, parallel to scorching and fiery in usage.

Latin vespera, evening. As a color modifier, vesper implies an evening-prayer-and-dusk quality, the visual register of Roman-Catholic-and-Orthodox-Vespers evening-prayer-and-dusk hour-of-day evening-prayer-and-incense liturgical surfaces under Vespers-and-Compline ecclesiastical-evening candlelight. Sits at the modifier-and-time end of the grid, parallel to eve and knell in usage.

The transparent green variety of olivine — the gem mined from Egyptian Zabargad Island since pharaonic times and now from arid mountain ranges in Pakistan, Arizona, and Vietnam. The color refers to a faceted peridot: a clean, slightly yellow-shifted green with the gem's signature internal warmth. Lighter than emerald, brighter than olivine in its rough state, with the unusual gem-trade quality of being one of the few minerals that occurs in only one color.