Sandstone (Quartz Arenite)
Clastic Sedimentary Rock - Quartz Arenite
sedimentary
Category
Sedimentary Like (Industrial Composite)
Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.
Sandstone (Red/Brown Variety)
Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)
sedimentary
Bituminous Coal
Organic Sedimentary Rock (Carbon-based)
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Brachiopod Fossil in Limestone
Phylum Brachiopoda (likely Order Spiriferida), CaCO3 (Calcite)
sedimentary
Black Kyanite
Kyanite (Al2SiO5) with carbonaceous inclusions
mineral
Chert (Chert Nodule)
Microcrystalline quartz (SiO2)
sedimentary
Asphalt Concrete
Bituminous conglomerate
sedimentary
Jasper
Jasper / Silicon Dioxide (SiO₂)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Arrowhead Debitage or Spall)
Silicon Dioxide (SiO₂)
sedimentary
Ferruginous Sandstone (Gozzan-like)
Ferruginous Sandstone (SiO2 with FeO(OH) inclusions)
sedimentary
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Chalcedony (Moonstone variant or White Agate)
Silicon Dioxide (SiO₂)
mineral
Chalcedony in Limestone Host Rock
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Mineral within Sedimentary Rock
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (containing Flint nodules)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Anthracite Coal
Anthracite (Carbon C)
metamorphic
Smoky Quartz and Biotite Schist
Quartz-Biotite Schist (SiO2 + K(Mg,Fe)3AlSi3O10(F,OH)2)
metamorphic
Dyed Blue Agate
Silicon Dioxide (SiO2)
Mineral
Red Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation (Magnetite-Hematite-Chert)
sedimentary
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
mineral
Graywacke
Graywacke
sedimentary
Orange Calcite with Siderite/Iron Oxide Coating
Calcium Carbonate (CaCO3)
mineral
Chalcedony
Silicon Dioxide (SiO₂)
mineral
Iron Ore (Goethite and Hematite)
Iron Oxyhydroxide (α-FeO(OH)) and Iron(III) oxide (Fe2O3)
sedimentary
Ferruginous Sandstone (Ironstone)
Ferruginous Sandstone / Limonite-cemented Quartz Sandstone
sedimentary
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Limonite and Goethite
Limonite (hydrated iron(III) oxide-hydroxide) and Goethite (α-FeO(OH))
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
metamorphic
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Common Opal variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Agate
Silicon Dioxide / Cryptocrystalline Quartz (SiO2)
mineral
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Red Sandstone
Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Ferruginous Sandstone (Gerrit)
Arenite with Iron Oxide cementation
sedimentary