Red Jasper
Chalcedony (SiO2) with iron inclusions
sedimentary
Category
Sedimentary (Man Made Conglomerate)
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
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Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary/mineral
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Moqui Marble (Shaman Stone)
Ironstone Concretion (Fe2O3 - Hematite/Goethite shell with Sandstone core)
sedimentary
Septarian Nodule (Dragon Stone)
Septarian Concretion (Calcite, Aragonite, and Limestone/Clay)
sedimentary
Banded Iron Formation (BIF) / Jaspilite
Banded Iron Formation (predominantly Hematite, Magnetite, and Quartz/Jasper)
sedimentary
Gastropod Fossil (Internal Mold)
Phylum Mollusca, Class Gastropoda (Steinkern)
sedimentary
Fossiliferous Limestone
Carbonate sedimentary rock (CaCO3)
sedimentary
Travertine
Calcium Carbonate (CaCO3)
sedimentary
Bivalve Fossil (Shell-bearing Sedimentary Rock)
Class Bivalvia (Phylum Mollusca) within a Calcarenite/Sandstone matrix
fossil
Quartzwacke / Impure Sandstone
Arenite with minor lithic fragments (Silicon Dioxide matrix)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Ferruginous Sandstone (River Pebble)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 cement)
sedimentary
Limonite Concretion
Limonite (FeO(OH)·nH2O) Pseudomorph
sedimentary
Petrified Wood
Silicified Wood
fossil
Coal
Bituminous or sub-bituminous coal (carbonaceous rock)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Starfish Fossil
Asteroidea fossil
fossil
Sandstone
Arenite
sedimentary
Limestone
Calcium carbonate (CaCO3)
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Limestone
Sedimentary Rock (Primarily CaCO3)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone Cobble
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Clastic Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone (likely Arkose or Lithic)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Sandstone or Quartzite
Arenite (if sedimentary) / Quartzite (if metamorphic)
Sedimentary or Metamorphic
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Sandstone (SiO2-rich clastic sedimentary rock)
sedimentary
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
sedimentary
Sandstone
Sandstone (SiO2 dominant)
sedimentary
Sandstone (Lithic Sandstone / Greywacke)
Sandstone (SiO2 rich clastic sedimentary rock)
sedimentary
Limestone with Calcite Crust
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary