Chert (varietal: Flint/Jasper)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (synthetic) specimens identified by the Rock Identifier community.
Chert (varietal: Flint/Jasper)
Silicon Dioxide (SiO2)
Chert Arrowhead
Microcrystalline Quartz (SiO2)
Gastropod Fossil (Snail Steinkern)
Class Gastropoda fossil, composed of Calcium Carbonate (CaCO3)
Sandstone concretion (Ironstone-stained)
Arenite with Limonite/Hematite staining (Silica-based with Iron Oxides)
Coal
Bituminous or Anthracite coal (carbon-rich sedimentary rock)
Sandstone (likely Ferruginous)
Arenite (SiO2 based with Fe2O3/FeO(OH) cement)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cementation)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone with Quartz Vein
Arenite with SiO2 intrusion
Sandstone (Water-worn Cobble)
Arenite (SiO2 based)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Fossil Shell Fragment (possibly Brachiopod or Bivalve)
Calcium Carbonate (CaCO3) - Phylum Brachiopoda or Mollusca
Sandstone (Ferruginous)
Arenite (with Iron Oxide)
Sandstone
Arenite
Chert (Flint)
Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide with Iron Oxide (SiO2)
Sandstone (Quartzose)
Arenite (SiO2 based)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Chert (Limonite-stained)
Microcrystalline Quartz (SiO2) with iron oxides
Sandstone
Arenite (primarily composed of SiO2)
Crushed Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite
Dalmation Stone
Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)
Banded Sandstone (Liesegang Rings)
Arenite with Liesegang rings (SiO2/Fe2O3)
Sandstone
Arenite
Sandstone (Ferruginous)
Arenite with Iron Oxide staining (Fe2O3)
Sandstone (River Pebble)
Arenite (primarily SiO2)
Sandstone Pebbles
Arenite (Sedimentary rock composed of sand-sized grains)
Sandstone
Arenite (SiO2 based)
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
Glauconite (Sandstone or Shale)
Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (primarily SiO2)
Fossiliferous Limestone
Fossiliferous Limestone (CaCO3)
Sandstone
Arenite (composed primarily of SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
Limestone
Calcium Carbonate (CaCO3)