Mineral with a Mohs hardness of 1

TALC

This soft, powdery substance is often used in baby powder and cosmetics for its gentle texture.

This clue is a straightforward definition referring to the softest mineral on the Mohs hardness scale, which ranks minerals from 1 (softest) to 10 (hardest). Talc scores a 1, making it the answer—it’s commonly known for its use in baby powder and its easily scratchable, soapy texture. No wordplay or tricks here; the clue directly points to the mineral’s defining property.