Quartz
Silicon Dioxide (SiO2)
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Basalt River Pebble
Basalt
Sandstone
Arenite (SiO2 primarily)
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
Sandstone
Sandstone (clastic sedimentary rock), primarily SiO2
Jasper
Microcrystalline Quartz (SiO2)
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily Quartz-based)
Sandstone
Arenite (SiO2 based)
Sedimentary Outcrop (Sandstone/Shale)
Sedimentary bedrock formation (variable composition)
Sandstone
Sandstone (various mineral compositions)
Hematite
Iron(III) oxide (Fe2O3)
Chalcedony / Agate Pebble
Silicon Dioxide (SiO2)
Sandstone (Whetstone/Sharpening Stone)
Siliciclastic Sandstone (SiO2 dominant)
Limonite Concretion
Limonite (FeO(OH)·nH2O) Pseudomorph
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (Quartz-rich)
Arenite (Quartz Arenite)
Gray Limestone Fragment
Limestone (CaCO3)
Limestone with Calcite Veining
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based with mineral cement)
White Marble
Metamorphic carbonate rock (primarily CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (primarily SiO2)
Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2)
Sandstone (Quartz-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone (Weathered Pebble)
Arenite (primarily SiO2)
Banded Sandstone / Siltstone
Sedimentary Rock (Quartzose Sandstone / Siltstone)
Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
Limestone (Weathered Pebble)
Calcium Carbonate (CaCO3) / Limestone
Sandstone
Sandstone (lithified sand)
Dalmatian Jasper
Peralkalic Quartz-Feldspar Porphyry
Sandstone (Ferruginous)
Arenite (Fe-rich)
Painted Sandstone Cobble
Clastic Sedimentary Rock (Sandstone base)
River Pebble (Quartzite / Sandstone)
SiO2 (Quartz-rich sedimentary/metamorphic rock)
River Stone (likely Quartzite or Chert)
Sedimentary rock composed of Silicon Dioxide (SiO2)
Fossil-bearing sedimentary rock, possibly fossil wood or bone
Indeterminate silicified/carbonate fossil in sandstone or mudstone
Sandstone (likely Fossiliferous Sandstone)
Clastic sedimentary rock (primarily SiO2)