Experimental data from a scanning-probe wide angle scattering experiment performed at the cSAXS beamline at teh Swiss Light Source at the Paul Scherrer Institure in Villigen, Switzerland. The file-format is that used in by the software package mumott (mumott.org). The sample is a small piece of a helix pomatia snail shell measuring about 1 by 1 by 3 mm^3. The piece is from around teh umbilicus about 5mm from the apex. The detector images have been azimuthally re-grouped and only the intensity of the aragonite bragg-peaks are included.