No biological specimens. Collected two (2) bags of basalt fragments with coatings foram 0 - 3 cm Mn crust - not botryoidal, very smooth, followed rock substrate contour.
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].