Sandstone
Clastic sedimentary rock
sedimentary
Category
Sedimentary (Processed Mineral Product)
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Processed Mineral Product) in the encyclopedia
View all →
Hematite (specular hematite)
Hematite, α-Fe₂O₃ (iron(III) oxide)
mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Hematite (Fe2O3)
Mineral
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Orange calcite
Calcite (CaCO₃)
mineral
Sandstone
Arenite
sedimentary
Toast
Triticum aestivum (processed)
not a geological specimen
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
Iron-rich breccia or weathered ironstone
Goethite–hematite-bearing ferruginous rock, possibly limonite
sedimentary
Asphalt aggregate pavement
Bituminous asphalt concrete containing crushed stone aggregate
sedimentary
Red Quartzite
Quartzite (primarily SiO2 with hematite impurities)
metamorphic
Unable to identify - Image contains non-geological items
N/A
Asphalt
Asphalt concrete
sedimentary
Pebble (likely Quartzite or Chert)
Clastic Sediment, potentially composed of SiO₂ (Quartz)
Mineral, Sediment
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Sandstone (likely Fossiliferous Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Hematite (Specularite)
Fe2O3 (Iron(III) oxide)
mineral
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
mineral
Turquoise and Hematite
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)
mineral
Metallic sulfide mineral specimen, likely pyrite
Pyrite (FeS₂), possibly a pyrite-rich sulfide aggregate
mineral
Crushed Limestone and Calcite
Calcium Carbonate (CaCO3)
sedimentary
Carved pyrite frog or toad
Pyrite (iron disulfide, FeS₂), likely a carved massive aggregate
mineral
Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Asphalt Concrete
Bituminous Concrete
sedimentary (artificial)
Conglomeratic gravel / polymictic breccia
Polymictic rudite, likely anthropogenic or beach/stream gravel; composition varies
sedimentary
Amethyst Cluster Pendant
Silicon Dioxide (SiO2) - Quartz variety Amethyst
gemstone
Blue Aragonite
Aragonite (Calcium Carbonate, CaCO3)
mineral
Sea Glass
Amorphous Silica (Anthropogenic glass) - SiO2
mineral
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Unknown dark mineral fragment
Indeterminate; possibly a dark silicate mineral or slag-like geological fragment
mineral
Shale with Plant Fossils / Carbonaceous Shale
Laminated Mudrock (Siliciclastic)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
sedimentary
Small metallic sulfide fragment, possibly pyrite-bearing ore
Likely pyrite (iron disulfide, FeS₂), though the image is insufficient for definitive identification
mineral
Mixed mineral and rock specimen collection
Assorted silicates, carbonates, oxides, and sulfides; individual species cannot be reliably identified from this image
mineral