The note of cold metal presents a distinctly sharp, almost aldehydic opening, immediately striking with its cool, sterile precision. It's often described as ozonic, with an aqueous transparency that feels both clean and slightly austere. There's an undeniable mineralic tang, sometimes evoking the faint scent of copper coins, the edge of a freshly sharpened blade, or even a subtle, clean blood accord. Its texture is smooth, slick, and unyielding, like running a finger across a polished steel surface. Intensity can range from a piercing, almost confrontational metallic glint to a more muted, ethereal hum that underpins other notes. It rarely dominates with warmth but rather cuts through, adding a cool, crisp dimension. As it evolves, it can soften slightly, revealing a subtle powdery nuance or maintaining its steely resolve into the heart and even the base, where it contributes a unique, long-lasting modernity and structure. Projection is typically moderate to strong, making its presence known without being overly diffusive.