Quartzite
Quartzite (SiO2)
Category
Browse sedimentary rock (technically a variety of chalcedony) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
Sandstone
Arenite (primarily SiO2)
Dyed Pink Agate Slice
Cryptocrystalline variety of Quartz (SiO2)
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cement)
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose)
Sandstone (clastic sedimentary rock, primarily SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
Milky Quartz with inclusions
Quartz (Silicon Dioxide, SiO2)
Chert / Flint
Silicon Dioxide (SiO2)
Sandstone
Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)
Chert (Brecciated Chert)
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (SiO2 - Silicon Dioxide with impurities)
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement
Petrified Wood
Silicified wood (principally Silicon Dioxide, SiO2)
Sandstone
Arenite (SiO2 based with mineral cement)
Sandstone (likely Iron-rich or Arkosic)
Arenite (SiO2 with FeO(OH) or Fe2O3 staining)
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
Chert / Flint
Microcrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Clastic sedimentary rock (Puddingstone)
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Clastic sedimentary rock (Conglomerate)
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Limestone
Calcareous sedimentary rock (CaCO3)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Sandstone (Clastic Sedimentary Rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Clastic sedimentary rock (Psephite)
Conglomerate
Conglomerate (clastic sedimentary rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Ferruginous Sandstone
Ferruginous Clastic Sedimentary Rock
Breccia
Breccia (Clastic Sedimentary Rock)