Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
Category
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
Sandstone (Red Sandstone)
Arenite (SiO2 based with Fe2O3 staining)
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
Bronzite
MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)
Shale with Iron Oxide Staining
Fissile Mudstone (primarily clay minerals and quartz)
Quartz
Silicon Dioxide (SiO₂)
Agate Geode
Chalcedony (cryptocrystalline SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
River Stone (likely Siltstone or fine-grained Sandstone)
Clastic Sedimentary Rock (Lithic Wacke / Siltstone)
Quartz Geode
Silicon Dioxide (SiO2) in a concretionary structure
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
Ironstone Concretion / Limonite Node
Goethite and Limonite (FeO(OH) nH2O)
Granite
Granite (a felsic intrusive igneous rock)
Magnetite
Magnetite (Fe3O4)
Jasper Conglomerate (Puddingstone)
Jasper Conglomerate (Siliceous Sedimentary Rock)
Quartz Conglomerate
Quartz Conglomerate (clastic sedimentary rock)
Jasper Conglomerate (specifically Puddingstone)
Jasper Conglomerate (Siliceous sedimentary rock)
Sandstone (with Lichen)
Arenite (primarily SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Fe2O3 staining)
Sandstone (with garnet granules)
Clastic sedimentary rock (primarily SiO2 with Fe3Al2(SiO4)3 inclusions)
Sandstone (Quartz Arenite)
Clastic Sedimentary Rock - Quartz Arenite
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Quartz Geode
Quartz (Silicon Dioxide, SiO2)
Blue Celestite (with Galena)
Strontium sulfate (SrSO4) and Lead sulfide (PbS)
Amethyst and Hematite Bracelet
Amethyst (SiO2) and Hematite (Fe2O3)
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose Pebble)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzite-rich Pebble)
Arenite (primarily SiO2)
Quartz
Silicon Dioxide (SiO2)
Jasper with Agate Inclusions
Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Sandstone with Calcite Vein
Clastic sedimentary rock (primarily SiO2) with Calcium Carbonate (CaCO3) infilling
Blue Chalcedony
Silicon Dioxide (SiO2)
Sandstone (Greywacke/Siltstone variant)
Clastic Sedimentary Rock (Lithic Wacke)
Sandstone (with potentially metamorphic or basaltic bands)
Arenite / Lithic Wacke
Sandstone (likely Siltstone variety)
Arenite / Siltstone (primary mineral SiO2)
Flagstone (Sandstone)
Clastic Sedimentary Rock (composed of quartz and feldspar)
Diabase (Dolerite)
Mafic Intrusive Igneous Rock
Quartz
Silicon Dioxide (SiO2)