Quartz pebble
Silicon dioxide (SiO2)
Category
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Quartz pebble
Silicon dioxide (SiO2)
Sandstone
Arenite (SiO2 dominated sandstone)
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
Fossil Shell (Bivalve)
Class Bivalvia (fossilized)
Sandstone
Arenite (SiO2 based with mineral cements)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Drupa or Druzy Quartz on Geode Fragment
Crystalline Silicon Dioxide (SiO2)
Sandstone
Sandstone (SiO2-rich detrital sedimentary rock)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
Sandstone
Clastic Sedimentary Rock
Sandstone
Arenite (SiO2 principal)
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 with various trace minerals)
Amygdaloidal Basalt with Zeolite/Quartz Infill
Amygdaloidal Basalt (Host: (Mg,Fe)2SiO4 / CaAl2Si2O8; Infill: SiO2 or Na2Al2Si3O10·2H2O)
Sandstone
Quartzose Sandstone (Sedimentary Rock)
Granite
Granite (Plutonic Igneous Rock)
Sandstone Pebble
Sedimentary quartz arenite
Sandstone Pebble
Quartz Arenite / Sandstone
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 primarily)
Quartz Vein in River Siltstone
Crystalline Quartz (SiO2) in Siliclastic Matrix
Fossilized bivalve shell in limestone
Calcitic fossil shell; likely an oyster or other rudist/bivalve (Bivalvia), preserved in carbonate rock
Sandstone (Quartzose)
Arenite (SiO2 based typically)
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)
Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
Basalt (Vesicular)
Extrusive mafic igneous rock; primarily (Mg, Fe)2SiO4 (Olivine), CaAl2Si2O8 (Plagioclase Feldspar), and Pyroxene