Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz - SiO2)
Category
Browse sedimentary rock (metamorphosed) specimens identified by the Rock Identifier community.
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz - SiO2)
Sandstone (Weathered)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (with iron oxide cement)
Sandstone with Iron Oxide
Arenite (SiO2 with Fe2O3 staining)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Quartz Veined Siltstone or Graywacke
Clastic Sedimentary Rock with Quartz (SiO2) veining
Limestone
Calcium Carbonate (CaCO3)
Druzy Quartz on Limestone
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based with quartz, feldspar, or lithic fragments)
Fossiliferous Chert with Brachiopod Impression
Chert (SiO2) containing Brachiopoda fossil remains
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Sandstone
Clastic sedimentary rock (Quartz arenite/Arkose)
Chert
Microcrystalline Quartz (SiO2)
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary vugs
Jasper Chert Nodules
Silicon Dioxide (SiO2) with Hematite impurities
Blue Chalcedony
Silicon Dioxide (SiO2)
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Travertine
Calcareous Tufa / Travertine (CaCO3)
Agate with Druzy Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Hag Stone
Siltstone or Fine-grained Sandstone with boring (e.g., Lithophaga impact)
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
Sandstone
Arenite
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (likely Ferruginous)
Sandstone (SiO2 with iron oxides)
André's Landing Rock (Sandstone Boulder)
Newark Supergroup Sandstone (likely Stockton Formation)
Chert (often called Flint or Jasper)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Pyrite in Shale
Iron Disulfide (FeS2) in Argillaceous Shale
Chert (and Flint variant)
Microcrystalline Quartz (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Limonite (Iron-rich Siltstone / Sandstone base)
Hydrous ferric oxide mixture (FeO(OH)·nH2O)
Sandstone
Arenite (primarily SiO2)
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (composed primarily of Quartz SiO2 and Feldspar)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Quartz Vein in River Siltstone
Crystalline Quartz (SiO2) in Siliclastic Matrix