Sandstone (Quartzose)
Arenite (SiO2 based)
Category
Browse synthetic (man made material mimicking natural stone) specimens identified by the Rock Identifier community.
Sandstone (Quartzose)
Arenite (SiO2 based)
Chert (and/or Flint)
Chert (Cryptocrystalline variety of Quartz, SiO2)
Citrine Quartz (Yellow Quartz)
Silicon Dioxide (SiO2) with iron impurities
Granite
Granite (phaneritic felsic intrusive rock)
Sapphire
Corundum (Al2O3)
Granite Cobble
Phaneritic Felsic Igneous Rock
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
Sandstone (likely Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Diorite
Diorite (Intermediate intrusive igneous rock)
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement
Sandstone (Calcareous or Ferruginous)
Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)
Chert (Flint)
Microcrystalline quartz (SiO2)
Crushed Stone (Gravel/Aggregates)
Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)
Chert (variations include Flint/Novaculite)
Chert (formula: SiO2)
Diamond (or Cubic Zirconia imitation)
Carbon (C) - Native Element
Sandstone
Arenite
Chert (Flinty variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)
Sandstone (likely Siltstone or fine-grained Sandstone)
Sedimentary Rock (Clastic)
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
Porcelain (Kaolin-based)
Alumina silicate ceramic (composed primarily of Kaolinite: Al2Si2O5(OH)4)
Granite
Phaneritic intrusive igneous rock (consisting mainly of Quartz, Alkali Feldspar, and Plagioclase)
Diorite
Diorite (Intermediate intrusive igneous rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (primarily Quartz, SiO2)
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Rutilated Quartz
Quartz (SiO2) with Rutile inclusions (TiO2)
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Chert (Iron-stained)
Chert (Microcrystalline and Cryptocrystalline Quartz, SiO2)
Granite (Weathered River Rock)
Plutonic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Diamond
Diamond (pure Carbon, C)
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)
Blue Slag Glass
Amorphous Silica (Industrial byproduct)