Sandstone (Red Flagstone)
Clastic sedimentary rock (primarily Quartz - SiO2)
Category
Browse sedimentary rock (specifically a clastic sedimentary rock formed into a cobble) specimens identified by the Rock Identifier community.
Sandstone (Red Flagstone)
Clastic sedimentary rock (primarily Quartz - SiO2)
River Cobble (Mixed Lithology)
Clastic Sedimentary Rock (Silicified Siltstone or Wacke)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Red Sandstone (Hematitic)
Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)
Sandstone
Arenite
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 primary composition)
Sandstone (with Quartz Vein/Inclusion)
Arenite (primarily SiO2)
Sandstone (specifically Flagstone)
Arenite (primarily composed of SiO2)
Ferruginous Sandstone
Iron-rich Clastic Sedimentary Rock
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 predominant)
Sandstone cobble
Quartz-rich sandstone, likely arkose or lithic sandstone
Weathered sandstone or quartzite cobble
Quartz-rich sandstone; possibly metamorphosed to quartzite
Sandstone
Clastic Sedimentary Rock
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Sandstone (with ripple marks)
Arenite / Quartz Sandstone
Conglomerate
Sedimentary Conglomerate
Shale
Clastic Sedimentary Rock
Wishing Stone (Graywacke with Quartz Vein)
Graywacke Sandstone containing a Quartz (SiO2) intrusion
Sandstone
Arenite (SiO2 principal component)
Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
Jasper Conglomerate (Puddingstone)
Jasper Conglomerate (Siliceous Sedimentary Rock)
Sandstone Beach Pebble
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide coating)
River Cobble (Sandstone)
Arenite / Quartz Sandstone
Sandstone (likely Greywacke or Siltstone variety)
Arenite / Siltstone (primarily SiO2)
Sandstone (Micaceous/Feldspathic variant)
Arenite (specifically subarkose or lithic arenite)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Weathered sandstone or siltstone cobble
Clastic sedimentary rock, likely quartz–feldspar lithic sandstone (exact identification requires testing)
Weathered sandstone or siltstone cobble
Clastic sedimentary rock, likely quartz–feldspar sandstone/siltstone
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Sandstone (River Rock)
Arenite (composed primarily of SiO2)
Banded Sandstone (River Cobble)
Arenite Sandstone with heavy mineral layering
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Sandstone (Water-worn Cobble)
Arenite (variable composition, primarily SiO2)
Red Sandstone
Arenite (SiO2 with Fe2O3)
Sandstone Pebble with Iron Staining
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 oxides)
Sandstone
Arenite
Sandstone River Cobble
Arenite (predominantly SiO2)
Sandstone
Arenite (SiO2 primarily)
River Cobble (Quartzite or Sandstone)
Arenite or Meta-quartzite (SiO2 composition)
Sandstone (Greywacke/Lithic Sandstone)
Arenite (composed primarily of SiO2)
River Cobble (Quartzite-rich Sandstone)
Clastic Sedimentary Rock (Litharenite/Quartzite transition)