Chalk

Note Profile

Abstract

About

Chalk is the smell of calcium carbonate as dust: blackboard chalk, chalk cliffs, limestone powder. Pure calcium carbonate is close to odourless, so the note only exists once the material is powdered and airborne. It is not an extract. Perfumers build it from dry-mineral synthetics, powdery-clean materials and alkaline-dry modifiers.

Scent Profile

Mineral is the note and the source leads with it three separate times: 'Dry, mineral, dusty', 'Dry mineral dust, faintly alkaline', 'Dry, mineral, alkaline'. It is the alkaline high-pH kind, lime and blackboard dust, not the metallic or wet-stone kind. Powdery is the second facet and the source names it twice, once as 'a specific powdery dryness that absorbs moisture' and again in the drydown as 'Subtle powdery dryness, neutral'. It is held well below mineral because the source insists the dryness is the point and the softness is not: chalk 'repels water' where talc and iris read cushioned. Nothing else clears. Sweet_vanillic is the 'faint dusty sweetness' the source mentions twice and qualifies as faint both times, and it is the one facet that separates chalk from ash and from concrete, neither of which is sweet at all. Earthy is scored low on the source's own comparison, 'less earthy than clay', which places chalk on that axis without giving it much of it. Clean_musk comes from the accord's stated construction, 'powdery-clean materials' and 'clean-dry modifiers', so it is an inference about how the smell is made rather than a description of the smell, and it is scored accordingly.

ScentWheel

Breadthmedium

EnvelopeBase · ~10h lasting

Family Elemental, Floral

Read off the wheel, not a label applied to the note.

Origin

Abstract mineral referent, not a botanical or an extract. The referent is calcium carbonate (CaCO3) in compressed dusty form. The only source found says outright there is no natural extract and the accord is a synthetic reconstruction.

Usage in Perfumery

A textural modifier that supplies dryness and mineral character rather than a smell of its own. Six Fragrantica placements, none in Parfumo. The source pairs it with iris on the shared dry-and-powdery axis, and with clean musks and mineral-earthy notes.