sedimentary (chemical), Mn/Fe oxide crusts and nodules
Large ribbon mass, brain like - similar to -004, sponges and corals attached, clean white breaks covered with Mn; fossil? To be checked in lab
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].