Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
Category
Browse sedimentary specimens identified by the Rock Identifier community.
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
Sandstone or Siltstone
Arenite (if sandstone)
Quartz pebble
Silicon dioxide (SiO2)
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
Sedimentary Sandstone
Arenite (Sedimentary Rock)
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
Shale
Shale (clastic sedimentary rock)
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
Shale fragment
Shale (clay mineral rich sedimentary rock)
Shale / Mudstone
Sedimentary rock (Claystone / Mudstone / Shale)
Brown Sandstone (River Rock)
Arenite
Shale
Sedimentary Shale
Shale and Pebble Fragment
Sedimentary Rock (Mudstone/Shale with Silica Pebble)
Shale
Argillaceous sedimentary rock
Mudstone
Argillite / Siliciclastic sedimentary rock
Sandstone
Clastic Sedimentary Rock
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
Sandstone
Arenite (primarily SiO2)
Siltstone / Slate
Siltstone / Low-grade Slate
Sandstone pebble
Sandstone (mainly Quartz, SiO2)
Sandstone
Arenite
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
Fossil Assortment and Geological Specimens
Various (including Ammonoidea)
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
Sandstone or Mudstone
Sedimentary Rock
Sandstone
Arenite
Shale / Mudstone
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Sandstone (Quartz-rich)
Arenite (SiO2)
Red Sandstone or Brick Fragment
Arenite (if sandstone)
Siltstone Pebble with Veining
Siltstone
Sandstone (Garden Boulder)
Sandstone (SiO2 dominated)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Arenite (SiO2 principal)