Sandstone
Arenite
sedimentary
Category
Man Made Rock (Sedimentary Analogue)
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
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Pebble (likely a type of sandstone or quartzite pebble)
Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.
Sedimentary rock
Cockle Shell Fossil
Cardiidae family (Bivalvia)
fossil
Cannonball Concretion
Calcite-cemented Sandstone Concretion
sedimentary
Fossil Brachiopod or Mollusk Cast
Phylum Brachiopoda / Mollusca internal mold
fossil
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Seashell Fossil
Gastropoda fossil
fossil
Coal (Bituminous / Anthracite)
Organic Sedimentary Rock (Carbonaceous Rock)
sedimentary
Banded Sedimentary Rock
Stratified Siliciclastic / Arenite or Siltstone with Mineral Bands
sedimentary
Sandstone (with potentially high Feldspar/Arkose content)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Sandstone
Arenite (predominantly SiO2 with iron oxides)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within a sedimentary or volcanic shell
mineral
Sandstone (Ferruginous)
Arenite (Siliclastic Sedimentary Rock)
sedimentary
Clear Quartz (Cut/Faceted Gemstone)
Silicon Dioxide (SiO2)
gemstone
Shale
Shale (Consolidated fine-grained clay/silt)
sedimentary
Amber-bearing Coal/Sedimentary Rock
Bituminous coal or carbonaceous siltstone with Fossilized Tree Resin (C10H16O)
sedimentary
Dalmation Jasper
Aplite with Arfvedsonite inclusions (SiO2 with Na3(Mg,Fe2+)4AlSi8O22(OH)2)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within a sedimentary or igneous host
sedimentary
Conglomerate
Conglomerate (Detrital Sedimentary Rock)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Painted River Rock
Painted Quartzite or Smooth Siltstone
sedimentary
Mudstone
Argillite
sedimentary
Chert (Yellow/Tan Variety)
Chert (SiO2)
sedimentary
Fossil Shell
Phylum Mollusca (Bivalvia or Brachiopoda)
fossil
Granite Pebble
Intrusive Igneous Rock
igneous
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Orange Quartz (or Carnelian Chalcedony)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Quartz Geode (likely within Limestone or Dolomite matrix)
Quartz (SiO₂)
Mineral within a Sedimentary Rock
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Agate (Banded Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Wishing Stone (Quartz-veined Metamorphic/Sedimentary Rock)
Quartz Vein in Greywacke/Slate (SiO2 in host rock)
metamorphic
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 oxides)
sedimentary
Weathered limestone
Calcite-rich limestone (CaCO₃), possibly fossiliferous or dolomitic
sedimentary
Sandstone
Arenite (primarily composed of SiO2)
sedimentary
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Serpentinite
Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)
Metamorphic Rock
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Sandstone
Arenite
sedimentary