Fossiliferous Limestone
Biogenic Calcium Carbonate (CaCO3)
Category
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Fossiliferous Limestone
Biogenic Calcium Carbonate (CaCO3)
Sandstone (with Arkose characteristics)
Clastic sedimentary rock (SiO2 with KAlSi3O8)
Sandstone
Arenite (primarily Quartz Sandstone)
Limestone Fragment
Sedimentary rock (primarily Calcium Carbonate, CaCO3)
Banded Iron Formation (BIF) / Iron Ore
Banded Iron Formation (composed primarily of Hematite (Fe2O3) and Magnetite (Fe3O4) with Quartz/Chert)
Sandstone
Arenite (SiO2 based)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Greywacke)
Sandstone (SiO2 enriched with lithic fragments)
Celadonite in Basalt (Green Earth)
Celadonite (K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2)
Sandstone
Arenite
Chalcedony (variations like Agate or Jasper)
Chalcedony (SiO₂ - microcrystalline quartz)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Conglomerate
Conglomerate (clastic sedimentary rock)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (Siliclastic Sedimentary Rock)
Limestone with Calcareous Accretion
Sedimentary Carbonate Rock (CaCO3)
Limestone with Calcite Veins
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (Sandstone)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Litharenite)
Quartz Geode
Silicon Dioxide (SiO2) in a sedimentary host
Barite Rose on Marcasite
Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Sandstone
Arenite (SiO2 based)
Fossiliferous Limestone
CaCO3 (with biological inclusions)
Sandstone (Banded)
Clastic Sedimentary Rock (composed of SiO2, CaCO3, or Fe2O3 cement)
Sandstone (lithic wacke/conglomerate mix)
Clastic Sedimentary Rock (SiO2 with lithic fragments)
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
Fossiliferous Limestone with Crinoid Stem
Sedimentary Rock with Echinodermata fossil fragment
Limestone with Fossil
Sedimentary limestone, calcium carbonate (CaCO3)
Sandstone
Sedimentary Clastic Rock (Quartzose Sandstone)
Sandstone (Weathered Cobble)
Clastic Sedimentary Rock (primarily SiO2)
Jasper and Chalcedony
Silicon Dioxide (SiO2) microcrystalline quartz
Jasper with Quartz Vein
Microcrystalline quartz (SiO2) with impurities
Limonite Sandstone
Ferruginous Sandstone (Hydrated Iron Oxide)
Chert (Flint)
Silicon Dioxide (SiO2)
Sandstone
Arenite
Sandstone (Painted)
Arenite (primarily SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 + varied clasts)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Jasper
Microcrystalline Quartz (SiO2)
Purple Chalcedony
Silicon Dioxide (SiO2)