2 pieces of pumice, 8 pebbles (rounded and angular) of a fine grained basic igneous rock, and 1 well rounded chert (?) pebble. All the recovered pebbles were in the 1 to 3 cm range.
Cite the IMLGS database as: Curators of Marine and Lacustrine Geological Samples Consortium. The Index to Marine and Lacustrine Geological Samples (IMLGS). National Geophysical Data Center, NOAA. doi:10.7289/V5H41PB8 [date of access].