Sandstone (Ferruginous)
Arenite (Fe-bearing Clastic Sedimentary Rock)
sedimentary
Category
Sedimentary (Fossiliferous)
Browse sedimentary (fossiliferous) specimens identified by the Rock Identifier community.
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Chert/Flint
Silicon dioxide (SiO2)
sedimentary
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chert (Chalcedony/Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary vugs
sedimentary
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
sedimentary
Limestone with Calcite Crust
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone Gravel
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone (Beach Pebble)
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
Sedimentary
Limestone (Weathered Aggregate)
Sedimentary Carbonate Rock (CaCO3)
sedimentary
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Limestone with Calcite Veins
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Shark Tooth Fossil
Selachii fossil
fossil
Fossil Bivalve / Ostreid Shell (Hag Stone / Perforated Pebble)
Phylum Mollusca, Class Bivalvia
fossil
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
sedimentary
Imperial Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Pyrite in Quartz Matrix
Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)
mineral
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Red Sandstone Pebble
Quartzose Sandstone
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone Pebble
Arenite (SiO2 dominated with iron oxide)
sedimentary
Fossilized Bone Chunk
Permineralized Vertebrate Bone (indeterminant)
fossil
Green Chert
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone with Dendritic Inclusions
Quartzose Sandstone
sedimentary
Gastropod Fossil
Class Gastropoda (fossilized)
fossil
Jasper
Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)
sedimentary
Fossilized Bone Fragment
Vertebrate Fossil
fossil
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert / Flint Pebble
Silicon Dioxide (SiO2)
sedimentary
Oyster Shell Fragment
Crassostrea virginica (or related Bivalvia)
fossil
Crinoidean Fossil (Stem Fragment)
Phylum Echinodermata, Class Crinoidea
fossil
Fossilized Shark Tooth
Eocene Lamniformes (Mackerel Shark clade)
fossil
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Milky Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral