Sandstone
Arenite (SiO2 dominated sandstone)
Category
Browse not a rock or mineral (anthropogenic material) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 dominated sandstone)
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
Sandstone
Sandstone (SiO2 predominant)
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone
Arenite (SiO2 based with mineral cements)
Sandstone
Arenite
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Sandstone (SiO2-rich detrital sedimentary rock)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Pebble / Rounded Rock
Lithic fragment / Water-worn rock
Granite
Granite (Plutonic Igneous Rock)
Sandstone
Arenite (primarily SiO2)
Drupa or Druzy Quartz on Geode Fragment
Crystalline Silicon Dioxide (SiO2)
Sandstone
Quartzose Sandstone (Sedimentary Rock)
Sandstone (Quartzose Sandstone)
Arenite (SiO2 based)
Sandstone (Lithic Arenite)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (SiO2 based sedimentary rock)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite
Quartz with impurities or Host Rock
SiO2 (Silicon Dioxide) with mixed silicates
Amygdaloidal Basalt with Zeolite/Quartz Infill
Amygdaloidal Basalt (Host: (Mg,Fe)2SiO4 / CaAl2Si2O8; Infill: SiO2 or Na2Al2Si3O10·2H2O)
Sandstone (Quartzose)
Arenite (SiO2 based typically)
Sandstone Pebble
Sedimentary quartz arenite
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
Sandstone
Arenite (SiO2 principal)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 primarily)
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 with various trace minerals)
Sandstone Pebble
Quartz Arenite / Sandstone
Fossilized bivalve shell in limestone
Calcitic fossil shell; likely an oyster or other rudist/bivalve (Bivalvia), preserved in carbonate rock
Sandstone
Arenite
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Arkosic or Ferruginous)
Arenite (SiO2 with iron oxides or feldspar)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Granite
Granite (Plutonic Igneous Rock)
Quartz Vein in River Siltstone
Crystalline Quartz (SiO2) in Siliclastic Matrix
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)