Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Banded Chert or Agate
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Jasper
Silicon dioxide (SiO2) with iron impurities
Chert (varietal: Jasper or Flint)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Red Sandstone
Arenite (with Iron Oxide / Hematite cementation)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Chert (Agate-like Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Ironstone (with Limonite/Goethite)
Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O and Hematite Fe2O3)
Chert (specifically Flint or Jasper variant)
Microcrystalline silica (SiO2)
Sandstone
Arenite
Chert (specifically Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Ferruginous Sandstone (Ironstone)
Sandstone with Hematite/Goethite cement (SiO2 + FeO(OH))
Chert (and/or River Pebble)
Microcrystalline silica (SiO2)
Chert / Jasper / Agate (Chalcedony Group)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2, silica)
Siltstone
Siltstone (primarily composed of SiO2)
Chert (Nodular)
Microcrystalline Silica (SiO2)
Limonite
Limonite (FeOO·nH2O)
Sandstone (Water-worn Cobble)
Arenite (variable composition, primarily SiO2)
Fluorite
Calcium Fluoride (CaF2)
Picture Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Druzy Quartz on Matrix (likely Limestone or Sandstone)
Silicon Dioxide (SiO2) with various trace impurities
Sandstone
Arenite (composed primarily of SiO2)
Travertine
Calcareous Tufa (CaCO3)
Sandstone
Arenite (primarily Quartz SiO2)
Red Siltstone
Siltstone (composed mainly of SiO2 and Fe2O3)
Sandstone (Ferruginous)
Arenite (with high iron oxide content)
Sandstone (with Iron concretions/staining)
Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)
Sandstone (Ferruginous)
Arenite with Iron Oxide (Limonite/Hematite) coating
Sandstone (likely Siltstone variety)
Arenite / Siltstone (primary mineral SiO2)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3/FeO(OH) cement)
Chert (Nodule)
Silicon dioxide (SiO2) - Cryptocrystalline Quartz
Chert (specifically Flint or Jasper variant)
Chert (Siliceous rock composed of microcrystalline Quartz, SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Fe2O3 staining)
Chalcedony (Botryoidal Agate)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
André's Landing Rock (Sandstone Boulder)
Newark Supergroup Sandstone (likely Stockton Formation)
Chert (Jasper/Agate variety)
Cryptocrystalline Quartz (SiO2)
Mookaite Jasper
Silicon Dioxide (SiO2) - variety of Chert/Jasper
Petrified Wood
Silicified Wood (SiO2)