Heavy Brood Tanzanite

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

Old English brōd, young-of-birds-or-to-ponder. As a color modifier, brood implies a hen-and-pondering-and-darkly-thinking quality, the visual register of Heathcliff-and-Hamlet-brood hand-hen-and-pondering-and-darkly-thinking Heathcliff-and-Hamlet-and-Byronic-hero brooded-and-pondering-and-darkly-thinking surfaces under Heathcliff-and-Hamlet-and-Byronic-hero stormy-and-overcast-and-introspective Yorkshire-moor-light. Sits at the modifier-and-mood end of the grid, parallel to mope and sigh in usage.

A blue-violet variety of zoisite — discovered in 1967 in a single small area of northern Tanzania near Mount Kilimanjaro and marketed by Tiffany & Co. shortly after. The color refers to a faceted tanzanite cut to maximize its strong pleochroism: a saturated, slightly violet-shifted deep blue-purple with the gem's signature internal life. Cooler than amethyst, warmer than iolite, with the gem-trade specificity of a stone that occurs in exactly one place on Earth.