The note unfolds with an immediate and potent embrace of **intense, dry smoke**, reminiscent of a smoldering birch log fire. It is inherently **phenolic and tarry**, possessing a distinct, almost medicinal edge that can veer towards a **leather-like, animalic richness**. There's a certain **sharpness** to its initial projection, quickly settling into a robust, grounding heart. Its texture is often perceived as rough, rustic, and profoundly earthy, far from smooth or ethereal. As a quintessential base note, it exhibits extraordinary longevity, clinging to the skin for hours, even days, subtly evolving to reveal nuances of a well-worn leather armchair, creosote, or even a faint rubbery facet. Its projection is typically strong, capable of dominating a composition if not carefully managed.