Sandstone
Arenite (primarily SiO2)
Category
Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2)
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
Sandstone
Arenite (primarily SiO2)
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
Diamond
Native Carbon (C)
Conglomerate
Conglomerate Rock (Paraconglomerate)
Sandstone (Quartzose)
Arenite (SiO2 principal)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2-rich)
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe-rich SiO2)
Diamond (in a jewelry setting)
Diamond (Carbon, C)
Sandstone
Clastic sedimentary rock (primarily Quartz and Feldspar)
Diamond (in jewelry setting)
Carbon (C)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
Sandstone (Weathered)
Arenite (primarily SiO2)
Diamond (as featured in jewelry)
Diamond (C - pure carbon)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3/FeO(OH) cement)
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
Banded Chert (River Stone)
Silicon Dioxide (SiO2)
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Granite
Granite (a common rock type, not a single mineral with a formula. Composed primarily of quartz, feldspar, and mica/amphibole).
Petrified Wood
Silicified Wood (primarily SiO2)
Sandstone (Quartzose Sandstone)
Arenite
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
Sandstone (Ferruginous)
Arenite (with Hematite/Limonite cement)
Diamond (in a cluster setting)
Crystallized Carbon (C)
Diamond
Diamond (pure Carbon, C)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
Note: No specimen visible
Sandstone (Quartzose type)
Arenite (primarily SiO2)
Sandstone (Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Sandstone (with Iron concretions/staining)
Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement