Textile (Upholstery Fabric)
Woven Polyethylene/Polyester or Cotton Blend
Category
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Textile (Upholstery Fabric)
Woven Polyethylene/Polyester or Cotton Blend
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone Pebble
Sandstone (SiO2 rich clastic rock)
Sandstone
Arenite (SiO2 based)
Sandstone
Sedimentary Rock (Quartz arenite/Arkosic sandstone)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone (with potential Arkose/Lithic characteristics)
Arenite (Sedimentary rock composed of sand-sized grains)
Sandstone (Ferruginous)
Arenite with Iron Oxides
Sandstone
Arenite (primarily Quartz chemical formula SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Banded Sandstone / Quartzite with Mineral Veins
Sedimentary rock (Quartz arenite with iron oxide/silica banding)
Sandstone
Arenite (SiO2 based)
Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Sandstone
Arenite (SiO2 dominant)
Tumbled red jasper
Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides
River Stone (composed of Siltstone/Basalt mixture)
Siltstone or microcrystalline Basalt pebble
Sandstone
Arenite (composed primarily of SiO2)
Ferruginous Sandstone (Ironstone)
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Crushed Granite and Quartz Gravel
Composite Igneous and Silicate Rock Aggregate
Bicolor Quartz Pebble
Silicon Dioxide (SiO2) with mineral inclusions
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica)
River Rock / Stream Pebble
Fluvial Clast / Rounded Sedimentary Particle
Sandstone
Arenite (predominantly SiO2)
Sandstone (likely Graywacke or Arkose)
Arenite
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (SiO2 primarily)
Sandstone (Quartzose)
Arenite (SiO2 based)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
Slag
Metallurgical by-product
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 based)
Granite-like igneous rock
Likely medium-grained granite or granodiorite; quartz–feldspar–mica aggregate
Sandstone
Arenite (SiO2 primarily)