The note of dust is a marvel of olfactory illusion, rarely a singular chemical entity but rather a masterful accord designed to evoke a specific textural and atmospheric sensation. It is inherently dry, often conjuring a fine, powdery veil that settles gently, almost imperceptibly, yet carries a profound weight of memory. Its texture can range from the crisp, almost mineralic grit of dry earth to the soft, velvety fluff of forgotten textiles and old paper. The intensity is typically subtle, a background hum rather than a prominent melody, often perceived as a 'skin scent' or an enveloping aura. It can be slightly metallic in its purest, most ancient form, or possess a faint, ethereal sweetness akin to dried vanilla pods or the delicate scent of iris root after years of patient repose. Its evolution is usually one of quiet persistence, a lingering presence that softens and melds with the skin, feeling like a second skin itself. Projection is generally intimate, drawing one closer, but it can also be used to create a vast, echoing space within a composition. Longevity is excellent, as the materials used to construct such an accord often comprise tenacious base and heart notes, allowing the dusty veil to cling for hours.