Sandstone
Arenite (SiO2 based clastic rock)
Category
Browse sedimentary rock (possibly a conglomerate or coarse grained sandstone) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 based clastic rock)
Sandstone Pebble
Arenite (primarily SiO2)
Granite
Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
Common Opal with Host Rock
Opal (Hydrated silica, SiO2·nH2O)
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
Gowganda Tillite (Puddingstone)
Glacial Tillite (Diamictite) with Jasper inclusions
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 with iron oxide inclusions)
Sandstone (Micaceous)
Arenite (primarily SiO2 with Phyllosilicates)
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
Sandstone
Arenite (Sedimentary rock comprising sand-sized grains)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (SiO2-rich)
Sandstone
Sandstone (various mineral compositions)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (Sandstone)
Banded Gneiss
Gneiss (Metamorphic Rock)
Gneiss
Gneiss (High-grade metamorphic rock)
Quartzite (river pebble) and Gabbro (crushed rock)
Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)
Sandstone
Arenite (SiO2 principal)
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone
Arenite (Siliclastic sedimentary rock, primarily SiO2)
Quartzite
Quartzite (SiO2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone or Limestone
Sedimentary Rock
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Shale
Fissile Mudstone
Granite
Phaneritic Plutonic Felsic Rock
Sandstone
Arenite (primarily SiO2 with iron oxide cementation)
Red Siltstone (or Red Shale)
Clastic Sedimentary Rock (Composition: primarily Quartz, Clay minerals, and Hematite Fe2O3)
Banded Gneiss
Gneiss (High-grade metamorphic rock)