Right-side
少 supplies the sound (shǎo to miǎo, with onset shift) and adds a strong semantic tilt - "a tiny grain-tip" fits perfectly with
少 "few/small". Same phonetic appears in
妙 (miào, wonderful),
沙 (shā, sand),
砂 - all keeping a related shǎ/miǎo reading and the "small thing" meaning.