Conglomerate Pebble (with Chert / Quartz)
Sedimentary Conglomerate / Breccia Pebble
sedimentary
Category
Sedimentary Rock
Browse sedimentary rock specimens identified by the Rock Identifier community.
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Seashell (Calcium Carbonate)
Calcium Carbonate (CaCO3)
mineral
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Banded Sedimentary Rock
Stratified Siliciclastic / Arenite or Siltstone with Mineral Bands
sedimentary
Sandstone (Sedimentary Rock)
Arenite (SiO2 based)
sedimentary
Weathered Sedimentary Rock with Liesegang Rings
Sandstone or Siltstone with Iron Oxide Banding
sedimentary
Chert (Sedimentary Rock)
Silicon Dioxide (SiO2)
sedimentary
Fossil Coral
Tabulate Coral (potentially Favosites or Calapoecia)
fossil
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix
sedimentary
Devil's Toenail
Gryphaea (extinct genus of foam oysters, typically composed of Calcite CaCO3)
sedimentary
Sedimentary Rock Fragments
Clastic Sedimentary Rock
sedimentary
Pitted Sedimentary Rock / Cupstone
Sedimentary rock with weathering pit (arenite / sandstone)
sedimentary
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Fossiliferous Sedimentary Rock
Sedimentary Rock with Invertebrate Fossil Imprint
fossil
Banded Sedimentary Rock
Sedimentary rock with mineral veins/banding
sedimentary
Quartz-veined Sedimentary Rock
Sedimentary rock with hydrothermal quartz veins
sedimentary
Banded Sedimentary Rock (Siltstone/Mudstone with concretion)
Siltstone with Ferruginous Banding
sedimentary
Vein-filled Sedimentary Rock
Silicified sedimentary rock with quartz/calcite vein
sedimentary
Sedimentary Rock (Limestone or Siltstone pebble)
Sedimentary rock fragment
sedimentary
Chert Nodules in Sedimentary Rock
Microcrystalline Quartz (SiO2) within Clastic Matrix
sedimentary
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Brachiopod Fossil in Sedimentary Rock
Phylum Brachiopoda fossil imprint in sedimentary matrix
fossil
Common Pebble / Sedimentary Rock Fragment
Lithified clastic sediment
sedimentary
Chert (Chalcedony-rich sedimentary rock)
Cryptocrystalline Quartz (SiO2)
sedimentary
Fossil-bearing sedimentary rock, possibly fossil wood or bone
Indeterminate silicified/carbonate fossil in sandstone or mudstone
fossil
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with marine fossils
fossil
Fossiliferous Limestone (or Bryozoan/Coral Fossil Pebble)
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
sedimentary
Fossil bivalve or brachiopod in sedimentary rock
Unidentified fossil shell impression; likely a ribbed bivalve or brachiopod preserved in shale/siltstone
fossil
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
sedimentary
Quartzite Conglomerate
Conglomerate (SiO2 rich)
sedimentary
Banded Sedimentary Rock (Wishbone Stone / Banded Quartzite or Limestone)
Silicified limestone or banded sedimentary rock with mineral veins
sedimentary
Weathered coal-bearing sedimentary rock (likely shale or mudstone with coal fragments)
Carbonaceous shale/mudstone; predominantly clay minerals, quartz, and organic carbon
sedimentary
Fossiliferous Sedimentary Rock (Coquina/Limestone)
Fossiliferous Calcarenite / Bioclastic Limestone
sedimentary
Moqui Marble (Shaman Stone)
Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)
sedimentary
Shiva Lingam
Cryptocrystalline Quartz (Jasperiod Siltstone)
sedimentary
Fossilized Shark Tooth in Matrix
Otodus obliquus (Chondrichthyes: Lamniformes)
fossil
Siltstone Pebble with Veining
Siltstone
sedimentary
Sandstone
Arenite
Sedimentary
Weathered sandstone fragment
Quartz-rich sandstone (compositionally uncertain)
sedimentary
Coal
Bituminous Coal / Anthracite
sedimentary
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
sedimentary