Heavy Monk 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.

Latin monachus, solitary-religious-man. As a color modifier, monk implies a Cistercian-and-Benedictine-monastic quality, the visual register of Cistercian-and-Benedictine-Monk hand-spun robe-and-cowl-and-scapular Cistercian-and-Benedictine-and-Trappist-monastic surfaces under Cistercian-and-Benedictine-Trappist-monastic hand-spun-robe candlelit-cloister light. Sits at the modifier-and-cultural end of the grid, parallel to friar and nun 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.