The note of 'dirt' is a complex olfactive landscape, often encompassing mineralic, humid, rooty, and sometimes slightly metallic or mushroomy facets. It can range from the dry, almost chalky scent of parched earth, conjuring images of arid plains, to the rich, loamy fragrance of freshly turned soil after a rain shower – a phenomenon known as petrichor. Its texture is often described as coarse, gritty, or damp. When dry, it has a dusty, sun-baked quality; when wet, it is cool, deep, and slightly sweet, like a forest floor. Intensity varies greatly; a whisper of it can provide grounding, while a prominent display is raw and primal. It typically behaves as a heart or base note, lending significant tenacity and depth, projecting with an intimate, enveloping aura rather than a loud sillage, slowly evolving to reveal more nuanced mineral or vegetal undertones over time.