Phosphorescent Court Peridot

Greek phōsphóros, light-bringer — adjectival suffix -escent. As a color modifier, phosphorescent implies a saturated-and-cool-glow-after-stimulation quality, the bright cool-green-blue color of Cu-doped-ZnS glow-in-the-dark photoluminescent surfaces. Sits at the bright-and-cool end of the grid, parallel to fluorescent and luminous in usage.

Old French cort, enclosed-yard. As a color modifier, court implies an enclosed-courtyard quality, the visual register of Inn-of-Court-and-Chinese-courtyard hand-built stone-and-tile-paved enclosed-and-formal courtyard-architecture surfaces under London-Inn-of-Court-and-Chinese-courtyard enclosed-formal architecture light. Sits at the modifier-and-place end of the grid, parallel to quad and yard 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.