Assertion: beach's sand | /r/HasProperty | calcareous
Facets:
Source sentences:
text: Sand at the shoreline is mostly coarse grained and calcareous, a signature of the high energy waves that impact this coast in the winter.
text: The beach, composed of calcareous sand mixed with terrigenous sediments, stretches for ~1 km and is one of the least developed vistas along the south shore.