Fossil Snail
Gastropoda (fossilized)
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Fossil Snail
Gastropoda (fossilized)
Claystone Concretion
Septarian Concretion (Ironstone-rich)
Pyrite in Shale
Iron Disulfide (FeS2)
Geode (Quartz / Chalcedony Geode)
SiO2 (Silicon Dioxide)
Quartzite (Yellow/Orange variety)
Quartzite (primarily SiO2)
Sandstone
Sandstone (composed predominantly of Quartz, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Obsidian
Obsidian (volcanic glass)
Shale (with Iron Oxide staining)
Fissile Mudstone (primarily Quartz and Clay minerals)
Shale (or Mudstone)
Clay mineral aggregate / Fine-grained siliciclastic sedimentary rock
Sandstone or Limestone
Arenite or Calcareous Sedimentary Rock
Chert (and Flint)
Silicon Dioxide (SiO2)
Chert (specifically White Chert or Novaculite)
Silicon Dioxide (SiO₂)
Sandstone
Arenite (SiO2 primarily)
Coal
Combustible sedimentary rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Arenite
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Fossiliferous Limestone
Biogenic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Sedimentary Clastic Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Stromatolite
Biogenic sedimentary rock
Sandstone (Banded)
Sedimentary Clastic Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Coal (Bituminous or Anthracite)
Carbonaceous Sedimentary Rock
River Stone (likely Siltstone or Mudstone)
Argillaceous Sedimentary Rock
Shale
Argillaceous Sedimentary Rock
Fossiliferous Limestone Pebble
Sedimentary Rock (CaCO3)
Red Claystone / Mudstone
Argillaceous sedimentary rock
Conglomerate
Conglomerate Sedimentary Rock
River Stone (Sandstone or Siltstone)
Sedimentary Rock (Clastic)
Shale
Argillaceous Sedimentary Rock
Hag Stone
Perforated Sedimentary Rock
Shale or Mudstone River Pebble
Argillaceous sedimentary rock