Heavy Loggia 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.

Italian loggia, roofed-open-gallery. As a color modifier, loggia implies an Italian-and-Mediterranean-roofed-open-gallery quality, the visual register of Italian-Renaissance-and-Mediterranean-loggia hand-built roofed-open-gallery loggia-and-arcade-and-pergola architectural surfaces under Italian-Renaissance-and-Mediterranean loggia-arcade afternoon light. Sits at the modifier-and-architecture end of the grid, parallel to atrium and stoa 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.